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Contact Creation using CLR and XML

The Contact sample for SQL Server provides some useful utilities that form an extra layer of functionality on top of the base AdventureWorks2012 sample database. The first utility creates contact records for various types of people involved in the AdventureWorks2012 database. The contact information is specified by using XML and is passed to a C#-based or VB stored procedure to create the XML and place it in the proper tables with the database.

To create and run this project the following the following software must be installed:

  • SQL Server or SQL Server Express. You can obtain SQL Server Express free of charge from the SQL Server Express Documentation and Samples Web site

  • The AdventureWorks database that is available at the SQL Server Developer Web site

  • .NET Framework SDK 2.0 or later or Microsoft Visual Studio 2005 or later. You can obtain .NET Framework SDK free of charge.

  • In addition, the following conditions must be met:

  • The SQL Server instance you are using must have CLR integration enabled.

  • In order to enable CLR integration, perform the following steps:

    Enabling CLR Integration

    • Execute the following Transact-SQL commands:

    sp_configure 'clr enabled', 1

    GO

    RECONFIGURE

    GO

    Note Note

    To enable CLR, you must have ALTER SETTINGS server level permission, which is implicitly held by members of the sysadmin and serveradmin fixed server roles

  • The AdventureWorks database must be installed on the SQL Server instance you are using.

  • If you are not an administrator for the SQL Server instance you are using, you must have an administrator grant you CreateAssembly permission to complete the installation.

Create and run the sample by using the following instructions:

  1. Open a Visual Studio or .NET Framework command prompt.

  2. If necessary, create a directory for your sample. For this example, we will use C:\MySample.

  3. In c:\MySample, create Contacts.vb (for the Visual Basic sample) or Contacts.cs (for the C# sample) and copy the appropriate Visual Basic or C# sample code (below) into the file.

  4. Compile the sample code from the command line prompt by executing one of the following, depending on your choice of language.

  5. Vbc /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Data.dll,C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.dll,C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Xml.dll /target:library Contacts.vb

  6. Csc /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.Data.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.dll /reference:C:\Windows\Microsoft.NET\Framework\v2.0.50727\System.XML.dll /target:library Contacts.cs

  7. Copy the Transact-SQL installation code into a file and save it as Install.sql in the sample directory.

  8. If the sample is installed in a directory other then C:\MySample\, edit the file Install.sql as indicated to point to that location.

  9. Deploy the assembly and stored procedure by executing

    • sqlcmd -E -I -i install.sql

  10. Copy Transact-SQL test command script into a file and save it as test.sql in the sample directory.

  11. Execute the test script with the following command

    • sqlcmd -E -I -i test.sql

  12. Copy the Transact-SQL cleanup script into a file and save it as cleanup.sql in the sample directory.

  13. Execute the script with the following command

    • sqlcmd -E -I -i cleanup.sql

The following are the code listings for this sample.

C#

using System;
using System.IO;
using System.Data;
using System.Data.SqlTypes;
using System.Xml;
using System.Collections.Generic;
using System.Globalization;
using System.Runtime.Serialization;
using Microsoft.SqlServer.Server;
using System.Data.SqlClient;
    /// <summary>
    /// Utility class for creating contact information.  A row in the contact table
    /// is inserted.  Additionally, rows in one or more other tables are inserted based on
    /// the information provided in the XML document passed to the CreateContact function.
    /// For individuals and employees, the contact record is one to one relationship with 
    /// the respective tables so those rows are created when the contact record is created.
    /// For stores and vendors, there is a one to many relationship for contacts, so a row is added to 
    /// either the Sales.StoreContact or Purchasing.VendorContact table (as appropriate), but 
    /// neither store or vendor rows are inserted into the database.
    /// 
    /// </summary>
    public sealed class ContactUtils
    {

        private ContactUtils()
        {
        }

   
        public static void CreateContact(SqlString contactData,
                                         out SqlInt32 contactId,
                                         out SqlInt32 customerId)
        {
            //TODO: When we can pass XML from T-SQL then contactData can be a SqlXmlReader
using (StringReader sr = new StringReader(contactData.Value))
{
XmlReader reader = XmlReader.Create(sr);
ContactCreator creator = null;

try
{
reader.MoveToContent();
EnsureEqual(reader.LocalName, "Contact");
reader.MoveToContent();
reader.ReadStartElement();

switch (reader.LocalName)
{
case "Individual": creator = new IndividualCreator(); break;
case "Store": creator = new StoreCreator(); break;
case "Vendor": creator = new VendorCreator(); break;
case "Employee": creator = new EmployeeCreator(); break;
default: break;
}

if (creator != null)
{
reader.ReadStartElement();
reader.MoveToContent();
creator.LoadDictionary(reader);
creator.Create();
contactId = creator.ContactId;
customerId = creator.CustomerId;
}
else
{
contactId = -1;
customerId = -1;

throw new AWUtilitiesContactParseException(
"Individual | Store | Vendor | Employee", reader.LocalName);
}
}
finally
{
reader.Close();
}
}
        }

        public static void EnsureEqual(String localName,
                                       String desiredLocalName)
        {
if (localName == null) throw new ArgumentNullException("localName");
            if (!localName.Equals(desiredLocalName))
            {
                throw new AWUtilitiesContactParseException(desiredLocalName,
                                                       localName);
            }
        }
    }

    /// <summary>
    ///Base class for all the contact creation classes.  Responsible for parsing the XML,
    ///providing the public API for all types of contacts, and for inserting the row 
    ///in the Person.Contact table.
    /// </summary>
  
    public abstract class ContactCreator
    {

        internal int parameterCount;
        internal int valueCount;

        internal Dictionary<String, String> contactDictionary = new Dictionary<
            String, String>();

        private static readonly String[] xmlColumns = new String[] {
"AdditionalContactInfo", "Demographics"
};

        private static readonly String[] nestedColumns = new String[] {
"Address"
};

        public int ContactId
        {
            get
            {
                String val;
                if (contactDictionary.TryGetValue("ContactID", out val))
                    return Int32.Parse(val, CultureInfo.InvariantCulture);
                else
                    return -1;
            }
            set
            {
                contactDictionary["ContactID"]
                    = value.ToString(CultureInfo.InvariantCulture);
            }
        }

        public int CustomerId
        {
            get
            {
                string val;

                if (contactDictionary.TryGetValue("CustomerID", out val))
                    return Int32.Parse(val, CultureInfo.InvariantCulture);
                else

                    //Not every contact is for a customer.  Return -1 in that case.
                    return -1;
            }
            set
            {
                contactDictionary["CustomerID"]
                    = value.ToString(CultureInfo.InvariantCulture);
            }
        }

        public void LoadDictionary(XmlReader reader)
        {
            while (reader.IsStartElement())
            {
                String key = reader.LocalName;
                String val;

                if (Array.IndexOf(xmlColumns, key) > -1)
                    val = reader.ReadInnerXml();
                else if (Array.IndexOf(nestedColumns, key) > -1)
                {
                    reader.ReadStartElement();
                    LoadDictionary(reader);
                    reader.ReadEndElement();
                    continue;
                }
                else
                    val = reader.ReadElementString();

                contactDictionary.Add(key, val);
            }
        }


        protected void ResetCounters(int valueForReset)
        {
            parameterCount = valueForReset;
            valueCount = valueForReset;
        }

        public String MaybeParameter(String name)
        {
            if (contactDictionary.ContainsKey(name))
            {
                if (parameterCount++ == 0)
                    return name;
                else
                    return ", " + name;
            }
            else
                return string.Empty;
        }

        public String MaybeValue(String name)
        {
            if (contactDictionary.ContainsKey(name))
            {
                if (valueCount++ == 0)
                    return "@" + name;
                else
                    return ", @" + name;
            }
            else
                return string.Empty;
        }

public static object TypeConvert(String valueToConvert, SqlDbType parameterType)
        {
if (valueToConvert == null) 
throw new ArgumentNullException("valueToConvert");
            switch (parameterType)
            {
                case SqlDbType.BigInt:
                    return Int64.Parse(valueToConvert,
                        CultureInfo.InvariantCulture);

                case SqlDbType.Int:
                    return Int32.Parse(valueToConvert,
                        CultureInfo.InvariantCulture);

                case SqlDbType.SmallInt:
                    return Int16.Parse(valueToConvert,
                        CultureInfo.InvariantCulture);

                case SqlDbType.TinyInt:
                    return Byte.Parse(valueToConvert,
                        CultureInfo.InvariantCulture);

                case SqlDbType.Bit:
                    {
                        if (valueToConvert.Equals("1") ||
                            valueToConvert.Equals("true")) return 1;
                        else
                            return 0;
                    }

                case SqlDbType.NVarChar:
                case SqlDbType.VarChar:
                case SqlDbType.NChar:
                case SqlDbType.NText:
                case SqlDbType.Text:
                case SqlDbType.Char:
                case SqlDbType.Xml:
                    return valueToConvert;

                case SqlDbType.DateTime:
                    return DateTime.Parse(valueToConvert,
                        CultureInfo.InvariantCulture);

                case SqlDbType.Money:
                    return Decimal.Parse(valueToConvert,
                        CultureInfo.InvariantCulture);

                default:
                    return "unknown conversion";
            }
        }

        public void MaybeAddCommandParameter(String keyName, String parameterName,
                                             SqlCommand command,
                                             SqlDbType parameterType,
                                             bool isRequired,
                                             String defaultValue)
        {
            if (isRequired || contactDictionary.ContainsKey(keyName))
            {
                SqlParameter param =
                             new SqlParameter("@" + parameterName, parameterType);
                String val = (contactDictionary.ContainsKey(keyName)) ?
                             contactDictionary[keyName] : defaultValue;

                param.Value = TypeConvert(val, parameterType);
                command.Parameters.Add(param);
            }
        }
        public void MaybeAddCommandParameter(String name, SqlCommand command,
                                             SqlDbType parameterType,
                                             bool isRequired,
                                             String defaultValue)
        {
            MaybeAddCommandParameter(name, name, command, parameterType,
                                     isRequired, defaultValue);
        }

        public void MaybeAddCommandParameter(String name, SqlCommand command,
                                             SqlDbType parameterType, int size,
                                             bool isRequired,
                                             String defaultValue)
        {
            if (isRequired || contactDictionary.ContainsKey(name))
            {
                MaybeAddCommandParameter(name, command, parameterType,
                                         isRequired, defaultValue);
                command.Parameters[command.Parameters.Count - 1].Size = size;
            }
        }

        public void MaybeAddCommandParameter(String keyName, String paramName, SqlCommand command,
                                             SqlDbType parameterType, int size,
                                             bool isRequired,
                                             String defaultValue)
        {
            if (isRequired || contactDictionary.ContainsKey(keyName))
            {
                MaybeAddCommandParameter(keyName, paramName, command, parameterType,
                                         isRequired, defaultValue);
                command.Parameters[command.Parameters.Count - 1].Size = size;
            }
        }

        public virtual void Create()
        {
            using (SqlConnection conn = new SqlConnection("context connection=true"))
            {
                SqlCommand command = conn.CreateCommand();

                ResetCounters(1);

                string parameters = String.Format(CultureInfo.InvariantCulture,
                    "NameStyle{0}, FirstName{1}, LastName{2}{3}{4}{5}, "
                    + "PasswordHash, PasswordSalt{6}",
                    MaybeParameter("Title"), MaybeParameter("MiddleName"),
                    MaybeParameter("Suffix"), MaybeParameter("EmailAddress"),
                    MaybeParameter("EmailPromotion"), MaybeParameter("Phone"),
                    MaybeParameter("AdditionalContactInfo"));
                string values = String.Format(CultureInfo.InvariantCulture,
                    "@NameStyle{0}, @FirstName{1}, @LastName{2}{3}{4}{5}, "
                    + "@PasswordHash, @PasswordSalt{6}",
                    MaybeValue("Title"), MaybeValue("MiddleName"),
                    MaybeValue("Suffix"), MaybeValue("EmailAddress"),
                    MaybeValue("EmailPromotion"), MaybeValue("Phone"),
                    MaybeValue("AdditionalContactInfo"));

                String text = String.Format(CultureInfo.InvariantCulture,
                    "INSERT INTO Person.Contact ({0}) VALUES ({1}); "
                    + "SELECT CAST(SCOPE_IDENTITY() as Int);",
                    parameters, values);
                command.CommandText = text;
                MaybeAddCommandParameter("NameStyle", command,
                    SqlDbType.Bit, true, "0");
                MaybeAddCommandParameter("Title", command,
                    SqlDbType.NVarChar, 8, false, null);
                MaybeAddCommandParameter("FirstName", command,
                    SqlDbType.NVarChar, 50, true, string.Empty);
                MaybeAddCommandParameter("MiddleName", command,
                    SqlDbType.NVarChar, 50, false, null);
                MaybeAddCommandParameter("LastName", command,
                    SqlDbType.NVarChar, 50, true, string.Empty);
                MaybeAddCommandParameter("Suffix", command,
                    SqlDbType.NVarChar, 10, false, null);
                MaybeAddCommandParameter("EmailAddress", command,
                    SqlDbType.NVarChar, 50, true, string.Empty);
                MaybeAddCommandParameter("EmailPromotion", command,
                    SqlDbType.Int, false, null);
                MaybeAddCommandParameter("Phone", command,
                    SqlDbType.NVarChar, 25, false, null);
                MaybeAddCommandParameter("PasswordHash", command,
                    SqlDbType.VarChar, 40, true, string.Empty);
                MaybeAddCommandParameter("PasswordSalt", command,
                    SqlDbType.VarChar, 10, true, string.Empty);
                MaybeAddCommandParameter("AdditionalContactInfo", command,
                    SqlDbType.Xml, false, null);
                conn.Open();
                this.ContactId = (int)command.ExecuteScalar();
            }
        }
    }



    /// <summary>
    ///A base class based on ContactCreator which is responsible for inserting information about
    ///a customer by inserting a row in the 
    ///Sales.Customer table.  Currently only used by the IndividualCreator class, but
    ///it might be useful if there was a variant made of the StoreCreator which actually inserted
    ///a Sales.Store row. 
    /// </summary>
  
    public abstract class CustomerCreator : ContactCreator
    {
        public override void Create()
        {
            base.Create();
            using (SqlConnection conn 
                = new SqlConnection("context connection=true"))
            {
                SqlCommand command = conn.CreateCommand();

                if (!contactDictionary.ContainsKey("CustomerType"))
                    contactDictionary["CustomerType"] = "I";
                ResetCounters(0);
                string parameters = String.Format(CultureInfo.InvariantCulture, 
                    "{0}{1}{2}", MaybeParameter("SalesPersonID"),
                    MaybeParameter("TerritoryID"),
                    //CustomerType is always present, but we
                    //need to get the commas right
                    MaybeParameter("CustomerType"));
                string values = String.Format(CultureInfo.InvariantCulture, 
                    "{0}{1}{2}", MaybeValue("SalesPersonID"),
                    MaybeValue("TerritoryID"), MaybeValue("CustomerType"));
                command.CommandText = String.Format(CultureInfo.InvariantCulture,
                    "INSERT INTO Sales.Customer ({0}) VALUES ({1}); "
                    + "SELECT CAST(SCOPE_IDENTITY() as Int);",
                    parameters, values);
                MaybeAddCommandParameter("SalesPersonID", command,
                    SqlDbType.Int, false, null);
                MaybeAddCommandParameter("TerritoryID", command,
                    SqlDbType.Int, false, null);
                MaybeAddCommandParameter("CustomerType", command,
                    SqlDbType.NChar, 1, true, "I");
                conn.Open();
                this.CustomerId = (int)command.ExecuteScalar();
            }
        }
    }

    /// <summary>
    ///Responsible for adding information about an individual purchasing by 
    ///inserting a row in the Sales.Individual table.
    /// </summary>
  
    public class IndividualCreator : CustomerCreator
    {
        public override void Create()
        {
            base.Create();
            using (SqlConnection conn
                = new SqlConnection("context connection=true"))
            {
                SqlCommand command = conn.CreateCommand();

                ResetCounters(2);
                String parameters = String.Format(CultureInfo.InvariantCulture,
                    "CustomerID, ContactID{0}", MaybeParameter("Demographics"));
                String values = String.Format(CultureInfo.InvariantCulture,
                    "@CustomerID, @ContactID{0}", MaybeValue("Demographics"));
                command.CommandText =
                    String.Format(CultureInfo.InvariantCulture,
                    "INSERT INTO Sales.Individual ({0}) VALUES ({1});",
                    parameters, values);
                MaybeAddCommandParameter("CustomerID", command,
                    SqlDbType.Int, true, string.Empty);
                MaybeAddCommandParameter("ContactID", command,
                    SqlDbType.Int, true, string.Empty);
                MaybeAddCommandParameter("Demographics", command,
                    SqlDbType.Xml, false, null);
                conn.Open();
                command.ExecuteNonQuery();
            }
        }
    }

    /// <summary>
    ///Responsible for relating a contact to a store by inserting a row in the 
    ///Sales.StoreContact table.
    /// </summary>
   
    public class StoreCreator : ContactCreator
    {
        public override void Create()
        {
            base.Create();
            using (SqlConnection conn 
                = new SqlConnection("context connection=true"))
            {
                SqlCommand command = conn.CreateCommand();

                command.CommandText =
                    String.Format(CultureInfo.InvariantCulture,
                    "INSERT INTO Sales.StoreContact (CustomerID, ContactID, "
                    + "ContactTypeID) VALUES (@CustomerID, @ContactID, @ContactTypeID);");
                MaybeAddCommandParameter("CustomerID", command,
                    SqlDbType.Int, true, string.Empty);
                MaybeAddCommandParameter("ContactID", command,
                    SqlDbType.Int, true, string.Empty);
                MaybeAddCommandParameter("ContactTypeID", command,
                    SqlDbType.TinyInt, true, string.Empty);
                conn.Open();
                command.ExecuteNonQuery();
            }
        }
    }

    /// <summary>
    ///Responsible for relating a contact to a vendor by inserting a row in the 
    ///Purchasing.VendorContact table.
    /// </summary>
    
    public class VendorCreator : ContactCreator
    {
        public override void Create()
        {
            base.Create();
            using (SqlConnection conn 
                = new SqlConnection("context connection=true"))
            {
                SqlCommand command = conn.CreateCommand();

                String parameters = "VendorID, ContactID, ContactTypeID";
                String values = String.Format(CultureInfo.InvariantCulture, 
                    "@VendorID, @ContactID, @ContactTypeID");

                command.CommandText =
                    String.Format(CultureInfo.InvariantCulture,
                    "INSERT INTO Purchasing.VendorContact ({0}) VALUES ({1});",
                    parameters, values);
                MaybeAddCommandParameter("VendorID", command,
                    SqlDbType.Int, true, string.Empty);
                MaybeAddCommandParameter("ContactID", command,
                    SqlDbType.Int, true, string.Empty);
                MaybeAddCommandParameter("ContactTypeID", command,
                    SqlDbType.TinyInt, true, string.Empty);
                conn.Open();
                command.ExecuteNonQuery();
            }
        }
    }

    /// <summary>
    ///Responsible for adding information about an employee by creating an address and then
    ///inserting a row in the HumanResources.Employee table.
    /// </summary>
   
    public class EmployeeCreator : ContactCreator
    {
        public override void Create()
        {
            base.Create();
            CreateAddress();
            int employeeID = -1;
            using (SqlConnection conn = new SqlConnection("context connection=true"))
            {
                SqlCommand command = conn.CreateCommand();

                ResetCounters(3);
                String parameters = String.Format(CultureInfo.InvariantCulture,
                    "NationalIDNumber, ContactID, LoginID{0}, Title, "
                    + "BirthDate, MaritalStatus, Gender, HireDate, "
                    + "SalariedFlag, VacationHours, SickLeaveHours",
                    MaybeParameter("ManagerID"));
                String values = String.Format(CultureInfo.InvariantCulture,
                    "@NationalIDNumber, @ContactID, @LoginID{0}, @Title, "
                    + "@BirthDate, @MaritalStatus, @Gender, @HireDate, "
                    + "@SalariedFlag, @VacationHours, @SickLeaveHours",
                    MaybeValue("ManagerID"));

                command.CommandText =
                    String.Format(CultureInfo.InvariantCulture,
                    "INSERT INTO HumanResources.Employee ({0}) VALUES ({1}); " 
                    + "SELECT CAST(SCOPE_IDENTITY() as Int);", 
                    parameters, values);
                MaybeAddCommandParameter("NationalIDNumber", command,
                    SqlDbType.NVarChar, 15, true, string.Empty);
                MaybeAddCommandParameter("ContactID", command,
                    SqlDbType.Int, true, string.Empty);
                MaybeAddCommandParameter("LoginID", command,
                    SqlDbType.NVarChar, 256, true, string.Empty);
                MaybeAddCommandParameter("ManagerID", command,
                    SqlDbType.Int, false, null);
                MaybeAddCommandParameter("JobTitle", "Title", command,
                    SqlDbType.NVarChar, 50, true, string.Empty);
                MaybeAddCommandParameter("BirthDate", command,
                    SqlDbType.DateTime, true, string.Empty);
                MaybeAddCommandParameter("MaritalStatus", command,
                    SqlDbType.NChar, 1, true, string.Empty);
                MaybeAddCommandParameter("Gender", command,
                    SqlDbType.NChar, 1, true, string.Empty);
                MaybeAddCommandParameter("HireDate", command,
                    SqlDbType.DateTime, true, string.Empty);
                MaybeAddCommandParameter("SalariedFlag", command,
                    SqlDbType.Bit, true, "1");
                MaybeAddCommandParameter("VacationHours", command,
                    SqlDbType.SmallInt, true, "0");
                MaybeAddCommandParameter("SickLeaveHours", command,
                    SqlDbType.SmallInt, true, "0");
                conn.Open();
                employeeID = (int)command.ExecuteScalar();
            }
            CreateEmployeeAdddress(employeeID,
                int.Parse(contactDictionary["AddressID"],
                System.Globalization.CultureInfo.InvariantCulture));
            CreateEmployeeDepartmentHistory(employeeID,
                int.Parse(contactDictionary["DepartmentID"],
                System.Globalization.CultureInfo.InvariantCulture),
                int.Parse(contactDictionary["ShiftID"],
                System.Globalization.CultureInfo.InvariantCulture));

        }

        public void CreateAddress()
        {
            using (SqlConnection conn 
                = new SqlConnection("context connection=true"))
            {
                SqlCommand command = conn.CreateCommand();

                ResetCounters(4);

                String parameters = String.Format(CultureInfo.InvariantCulture,
                    "AddressLine1{0}, City, StateProvinceID, PostalCode",
                    MaybeParameter("AddressLine2"));
                String values = String.Format(CultureInfo.InvariantCulture,
                "@AddressLine1{0}, @City, @StateProvinceID, @PostalCode",
                    MaybeValue("AddressLine2"));

                command.CommandText =
                    String.Format(CultureInfo.InvariantCulture,
                    "INSERT INTO Person.Address ({0}) VALUES ({1}); "
                    + "SELECT CAST(SCOPE_IDENTITY() as Int);",
                    parameters, values);
                MaybeAddCommandParameter("AddressLine1", command,
                    SqlDbType.NVarChar, 60, true, string.Empty);
                MaybeAddCommandParameter("AddressLine2", command,
                    SqlDbType.NVarChar, 60, false, null);
                MaybeAddCommandParameter("City", command,
                    SqlDbType.NVarChar, 30, true, string.Empty);
                MaybeAddCommandParameter("StateProvinceID", command,
                    SqlDbType.Int, true, string.Empty);
                MaybeAddCommandParameter("PostalCode", command,
                    SqlDbType.NVarChar, 15, true, string.Empty);
                conn.Open();
                contactDictionary["AddressID"] = command.ExecuteScalar().ToString();
            }
        }

        public static void CreateEmployeeAdddress(int employeeId, int addressId)
        {
            using (SqlConnection conn 
                = new SqlConnection("context connection=true"))
            {
                SqlCommand cmd = conn.CreateCommand();
                cmd.CommandText = "INSERT INTO HumanResources.EmployeeAddress " 
                    + "(EmployeeID, AddressID) VALUES (@EmployeeID, @AddressID)";
                cmd.Parameters.AddWithValue("@EmployeeID", employeeId);
                cmd.Parameters.AddWithValue("@AddressID", addressId);
                conn.Open();
                cmd.ExecuteNonQuery();
            }
        }

        public static void CreateEmployeeDepartmentHistory(int employeeId, int departmentId, int shiftId)
        {
            using (SqlConnection conn 
                = new SqlConnection("context connection=true"))
            {
                SqlCommand cmd = conn.CreateCommand();
                cmd.CommandText = "INSERT INTO HumanResources.EmployeeDepartmentHistory " 
                    + "(EmployeeID, DepartmentID, ShiftID, StartDate) VALUES " 
                    + "(@EmployeeID, @DepartmentID, @ShiftID, @StartDate)";
                cmd.Parameters.AddWithValue("@EmployeeID", employeeId);
                cmd.Parameters.AddWithValue("@DepartmentID", departmentId);
                cmd.Parameters.AddWithValue("@ShiftID", shiftId);
                cmd.Parameters.AddWithValue("@StartDate", DateTime.Now);
                conn.Open();
                cmd.ExecuteNonQuery();
            }
        }
    }

    /// <summary>
    ///Used to indicate when parsing the xml document for creating a contact is 
    ///not in the proper form.
    /// </summary>
    [Serializable]
    public class AWUtilitiesContactParseException : Exception
    {
        private String expected = "Unknown";

        private String actual = "Unknown";

        public String Expected
        {
            get
            {
                return expected;
            }
            set
            {
                expected = value;
            }
        }

        public String Actual
        {
            get
            {
                return actual;
            }
            set
            {
                actual = value;
            }
        }

        public AWUtilitiesContactParseException()
        {
        }

        public AWUtilitiesContactParseException(String message)
            : base(message)
        {
        }

        public AWUtilitiesContactParseException(string message, Exception innerException)
            : base(message, innerException)
        {
        }

        protected AWUtilitiesContactParseException(SerializationInfo info, StreamingContext context)
            : base(info, context)
        {
        }

        public AWUtilitiesContactParseException(String expected, String actual)
        {
            this.Expected = expected;
            this.Actual = actual;
        }

        public override String ToString()
        {
            return String.Format(CultureInfo.CurrentUICulture,
                "Parsing error during contact creation, expected element {0}, found element {1}.",
                this.Expected, this.Actual);
        }

        [System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand, SerializationFormatter = true)]
        public override void GetObjectData(SerializationInfo info, StreamingContext context)
        {
            // Use the method of the base class.
            base.GetObjectData(info, context);
        }
    }

VB.NET

      Imports System
Imports System.Data
Imports System.Data.Sql
Imports System.Data.SqlClient
Imports System.Data.SqlTypes
Imports System.IO
Imports System.Xml
Imports System.Collections
Imports System.Collections.Generic
Imports System.Globalization
Imports Microsoft.SqlServer.Server
Imports Microsoft.VisualBasic
Imports System.Diagnostics

Public NotInheritable Class ContactUtils
    Private Sub New()
    End Sub
   
    <Microsoft.SqlServer.Server.SqlProcedure()> _
    Public Shared Sub CreateContact(ByVal contactData As SqlString, ByRef contactId As SqlInt32, ByRef customerId As SqlInt32)
        ' TODO: When we can pass XML from T-SQL then contactData can be a SqlXmlReader
        Using sr As New StringReader(contactData.Value)
            Dim reader As XmlReader = XmlReader.Create(sr)

            reader.MoveToContent()
            EnsureEqual(reader.LocalName, "Contact")
            reader.MoveToContent()
            reader.ReadStartElement()

            Dim creator As ContactCreator = Nothing

            Select Case reader.LocalName
                Case "Individual"
                    creator = New IndividualCreator()

                Case "Store"
                    creator = New StoreCreator()

                Case "Vendor"
                    creator = New VendorCreator()

                Case "Employee"
                    creator = New EmployeeCreator()

                Case Else
            End Select

            If (creator IsNot Nothing) Then
                reader.ReadStartElement()
                reader.MoveToContent()
                creator.LoadDictionary(reader)
                reader.Close()
                creator.Create()
                contactId = creator.ContactID
                customerId = creator.CustomerID
            Else
                contactId = -1
                customerId = -1

                Throw New AWUtilsContactParseException("Individual | Store | Vendor | Employee", reader.LocalName)
            End If
        End Using
    End Sub

    Public Shared Sub EnsureEqual(ByVal localName As String, ByVal desiredLocalName As String)
        If localName Is Nothing Then
            Throw New ArgumentNullException("localName")
        End If
        If Not localName.Equals(desiredLocalName) Then
            Throw New AWUtilsContactParseException(desiredLocalName, localName)
        End If
    End Sub
End Class
<Serializable()> _
Public Class AWUtilsContactParseException
    Inherits ApplicationException
    Private _expected As String = "unknown"

    Private _actual As String = "unknown"

    Public Property Expected() As String
        Get
            Return _expected
        End Get
        Set(ByVal Value As String)
            _expected = Value
        End Set
    End Property

    Public Property Actual() As String
        Get
            Return _actual
        End Get
        Set(ByVal Value As String)
            _actual = Value
        End Set
    End Property

    Public Sub New()
    End Sub

    Public Sub New(ByVal expected As String, ByVal actual As String)
        Me.Expected = expected
        Me.Actual = actual
    End Sub

    Public Overrides Function ToString() As String
        Return String.Format(System.Globalization.CultureInfo.InvariantCulture, _
            "Parsing error during contact creation, expected element {0}, found element {1}.", _
            Me.Expected, Me.Actual)
    End Function
End Class
Public MustInherit Class CustomerCreator
    Inherits ContactCreator

    Protected Sub New()
    End Sub

    Public Overrides Sub Create()
        MyBase.Create()
        Using conn As New SqlConnection("context connection=true")
            Dim command As SqlCommand = conn.CreateCommand()

            If Not contactDictionary.ContainsKey("CustomerType") Then
                contactDictionary("CustomerType") = "I"
            End If

            ResetCounters(0)

            Dim parameters As String = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "{0}{1}{2}", _
                MaybeParameter("SalesPersonID"), _
                MaybeParameter("TerritoryID"), _
                MaybeParameter("CustomerType"))
            ' CustomerType is always present, but we need to get the commas right
            Dim values As String = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "{0}{1}{2}", _
                MaybeValue("SalesPersonID"), _
                MaybeValue("TerritoryID"), _
                MaybeValue("CustomerType"))

            command.CommandText = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "INSERT INTO Sales.Customer ({0}) VALUES ({1}); SELECT CAST(SCOPE_IDENTITY() as Int);", _
                parameters, values)
            MaybeAddCommandParameter("SalesPersonID", command, SqlDbType.Int, False, Nothing)
            MaybeAddCommandParameter("TerritoryID", command, SqlDbType.Int, False, Nothing)
            MaybeAddCommandParameter("CustomerType", command, SqlDbType.NChar, 1, True, "I")
            conn.Open()
            Me.CustomerID = CType(command.ExecuteScalar(), Integer)
        End Using
    End Sub
End Class
Public MustInherit Class ContactCreator
    Protected parameterCount As Integer

    Protected valueCount As Integer

    Protected contactDictionary As New Dictionary(Of String, String)()

    Private Shared ReadOnly xmlColumns() As String = {"AdditionalContactInfo", "Demographics"}
    Private Shared ReadOnly nestedColumns() As String = {"Address"}

    Protected Sub New()
    End Sub


    Public Property ContactID() As Integer
        Get
            Dim val As String = String.Empty

            If contactDictionary.TryGetValue("ContactID", val) Then
                Return Integer.Parse(val, CultureInfo.InvariantCulture)
            Else
                Return -1
            End If
        End Get
        Set(ByVal Value As Integer)
            contactDictionary("ContactID") = Value.ToString(CultureInfo.InvariantCulture)
        End Set
    End Property


    Public Property CustomerID() As Integer
        Get
            Dim val As String = String.Empty

            If contactDictionary.TryGetValue("CustomerID", val) Then
                Return Integer.Parse(val, CultureInfo.InvariantCulture)
            Else
                ' Not every contact is for a customer.  Return -1 in that case.
                Return -1
            End If
        End Get
        Set(ByVal Value As Integer)
            contactDictionary("CustomerID") _
                = Value.ToString(CultureInfo.InvariantCulture)
        End Set
    End Property

    Public Sub LoadDictionary(ByVal reader As XmlReader)
        While reader.IsStartElement()
            Dim key As String = reader.LocalName
            Dim val As String

            If Array.IndexOf(xmlColumns, key) > -1 Then
                val = reader.ReadInnerXml()
            ElseIf Array.IndexOf(nestedColumns, key) > -1 Then
                reader.ReadStartElement()
                LoadDictionary(reader)
                reader.ReadEndElement()
                GoTo ContinueWhile1
            Else
                val = reader.ReadElementString()
            End If

            contactDictionary.Add(key, val)

ContinueWhile1:
        End While
    End Sub

    Protected Sub ResetCounters(ByVal valueForReset As Integer)
        parameterCount = valueForReset
        valueCount = valueForReset
    End Sub

    Public Function MaybeParameter(ByVal name As String) As String
        If contactDictionary.ContainsKey(name) Then
            parameterCount = parameterCount + 1
            If parameterCount = 1 Then
                Return name
            Else
                Return ", " & name
            End If
        Else
            Return String.Empty
        End If
    End Function

    Public Function MaybeValue(ByVal name As String) As String
        If contactDictionary.ContainsKey(name) Then
            valueCount = valueCount + 1
            If valueCount = 1 Then
                Return "@" & name
            Else
                Return ", @" & name
            End If
        Else
            Return String.Empty
        End If
    End Function

    Public Shared Function TypeConvert(ByVal valueToConvert As String, ByVal parameterType As SqlDbType) As Object
        If valueToConvert Is Nothing Then
            Throw New ArgumentNullException("valueToConvert")
        End If
        Select Case parameterType
            Case SqlDbType.BigInt
                Return Int64.Parse(valueToConvert, CultureInfo.InvariantCulture)

            Case SqlDbType.Int
                Return Integer.Parse(valueToConvert, CultureInfo.InvariantCulture)

            Case SqlDbType.SmallInt
                Return Int16.Parse(valueToConvert, CultureInfo.InvariantCulture)

            Case SqlDbType.TinyInt
                Return Byte.Parse(valueToConvert, CultureInfo.InvariantCulture)

            Case SqlDbType.Bit
                If valueToConvert.Equals("1") OrElse valueToConvert.Equals("true") Then
                    Return 1
                Else
                    Return 0
                End If

            Case SqlDbType.NVarChar, SqlDbType.VarChar, SqlDbType.NChar, SqlDbType.NText, SqlDbType.Text, SqlDbType.Char, SqlDbType.Xml
                Return valueToConvert

            Case SqlDbType.DateTime
                Return DateTime.Parse(valueToConvert, CultureInfo.InvariantCulture)

            Case SqlDbType.Money
                Return Decimal.Parse(valueToConvert, CultureInfo.InvariantCulture)

            Case Else
                Return "unknown conversion"
        End Select
    End Function

    Public Overloads Sub MaybeAddCommandParameter(ByVal keyName As String, ByVal paramName As String, ByVal command As SqlCommand, ByVal parameterType As SqlDbType, ByVal isRequired As Boolean, ByVal defaultValue As String)
        If isRequired OrElse contactDictionary.ContainsKey(keyName) Then
            Dim param As New SqlParameter("@" & paramName, parameterType)
            Dim val As String

            If (contactDictionary.ContainsKey(keyName)) Then
                val = contactDictionary(keyName)
            Else
                val = defaultValue
            End If

            param.Value = TypeConvert(val, parameterType)
            command.Parameters.Add(param)
        End If
    End Sub

    Public Overloads Sub MaybeAddCommandParameter(ByVal name As String, ByVal command As SqlCommand, ByVal parameterType As SqlDbType, ByVal isRequired As Boolean, ByVal defaultValue As String)
        MaybeAddCommandParameter(name, name, command, parameterType, isRequired, defaultValue)
    End Sub

    Public Overloads Sub MaybeAddCommandParameter(ByVal name As String, ByVal command As SqlCommand, ByVal parameterType As SqlDbType, ByVal size As Integer, ByVal isRequired As Boolean, ByVal defaultValue As String)
        If isRequired OrElse contactDictionary.ContainsKey(name) Then
            MaybeAddCommandParameter(name, command, parameterType, isRequired, defaultValue)
            command.Parameters(command.Parameters.Count - 1).Size = size
        End If
    End Sub

    Public Overloads Sub MaybeAddCommandParameter(ByVal keyName As String, ByVal paramName As String, ByVal command As SqlCommand, ByVal parameterType As SqlDbType, ByVal size As Integer, ByVal isRequired As Boolean, ByVal defaultValue As String)
        If isRequired OrElse contactDictionary.ContainsKey(keyName) Then
            MaybeAddCommandParameter(keyName, paramName, command, parameterType, isRequired, defaultValue)
            command.Parameters(command.Parameters.Count - 1).Size = size
        End If
    End Sub


    Public Overridable Sub Create()
        Using conn As New SqlConnection("context connection=true")

            Dim command As SqlCommand = conn.CreateCommand()

            ResetCounters(1)

            Dim parameters As String = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "NameStyle{0}, FirstName{1}, LastName{2}{3}{4}{5}, PasswordHash, PasswordSalt{6}", _
                MaybeParameter("Title"), MaybeParameter("MiddleName"), _
                MaybeParameter("Suffix"), MaybeParameter("EmailAddress"), _
                MaybeParameter("EmailPromotion"), MaybeParameter("Phone"), _
                MaybeParameter("AdditionalContactInfo"))
            Dim values As String = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "@NameStyle{0}, @FirstName{1}, @LastName{2}{3}{4}{5}, @PasswordHash, @PasswordSalt{6}", _
                MaybeValue("Title"), MaybeValue("MiddleName"), MaybeValue("Suffix"), _
                MaybeValue("EmailAddress"), MaybeValue("EmailPromotion"), _
                MaybeValue("Phone"), MaybeValue("AdditionalContactInfo"))

            Dim formatText As String = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "INSERT INTO Person.Contact ({0}) VALUES ({1}); SELECT CAST(SCOPE_IDENTITY() AS Int);", _
                parameters, values)

            command.CommandText = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                formatText)
            MaybeAddCommandParameter("NameStyle", command, SqlDbType.Bit, True, "0")
            MaybeAddCommandParameter("Title", command, SqlDbType.NVarChar, 8, False, Nothing)
            MaybeAddCommandParameter("FirstName", command, SqlDbType.NVarChar, 50, True, String.Empty)
            MaybeAddCommandParameter("MiddleName", command, SqlDbType.NVarChar, 50, False, Nothing)
            MaybeAddCommandParameter("LastName", command, SqlDbType.NVarChar, 50, True, String.Empty)
            MaybeAddCommandParameter("Suffix", command, SqlDbType.NVarChar, 10, False, Nothing)
            MaybeAddCommandParameter("EmailAddress", command, SqlDbType.NVarChar, 50, True, String.Empty)
            MaybeAddCommandParameter("EmailPromotion", command, SqlDbType.Int, False, Nothing)
            MaybeAddCommandParameter("Phone", command, SqlDbType.NVarChar, 25, False, Nothing)
            MaybeAddCommandParameter("PasswordHash", command, SqlDbType.VarChar, 40, True, String.Empty)
            MaybeAddCommandParameter("PasswordSalt", command, SqlDbType.VarChar, 10, True, String.Empty)
            MaybeAddCommandParameter("AdditionalContactInfo", command, SqlDbType.Xml, False, Nothing)
            conn.Open()
            Me.ContactID = CType(command.ExecuteScalar(), Integer)
            Dim st As New StackTrace(True)
        End Using
    End Sub
End Class
Public Class EmployeeCreator
    Inherits ContactCreator

    Public Overrides Sub Create()
        MyBase.Create()
        CreateAddress()
        Dim employeeID As Integer = -1
        Using conn As New SqlConnection("context connection=true")

            Dim command As SqlCommand = conn.CreateCommand()

            ResetCounters(3)
            Dim parameters As String = String.Format(CultureInfo.InvariantCulture, _
                "NationalIDNumber, ContactID, LoginID{0}, Title, BirthDate, MaritalStatus, Gender, HireDate, SalariedFlag, VacationHours, SickLeaveHours", _
                MaybeParameter("ManagerID"))
            Dim values As String = String.Format(CultureInfo.InvariantCulture, _
                "@NationalIDNumber, @ContactID, @LoginID{0}, @Title, @BirthDate, @MaritalStatus, @Gender, @HireDate, @SalariedFlag, @VacationHours, @SickLeaveHours", _
                MaybeValue("ManagerID"))

            command.CommandText = String.Format(CultureInfo.InvariantCulture, _
                "INSERT INTO HumanResources.Employee ({0}) VALUES ({1}); SELECT CAST(SCOPE_IDENTITY() as Int);", _
                parameters, values)
            MaybeAddCommandParameter("NationalIDNumber", command, SqlDbType.NVarChar, 15, True, String.Empty)
            MaybeAddCommandParameter("ContactID", command, SqlDbType.Int, True, String.Empty)
            MaybeAddCommandParameter("LoginID", command, SqlDbType.NVarChar, 256, True, String.Empty)
            MaybeAddCommandParameter("ManagerID", command, SqlDbType.Int, False, Nothing)
            MaybeAddCommandParameter("JobTitle", "Title", command, SqlDbType.NVarChar, 50, True, String.Empty)
            MaybeAddCommandParameter("BirthDate", command, SqlDbType.DateTime, True, String.Empty)
            MaybeAddCommandParameter("MaritalStatus", command, SqlDbType.NChar, 1, True, String.Empty)
            MaybeAddCommandParameter("Gender", command, SqlDbType.NChar, 1, True, String.Empty)
            MaybeAddCommandParameter("HireDate", command, SqlDbType.DateTime, True, String.Empty)
            MaybeAddCommandParameter("SalariedFlag", command, SqlDbType.Bit, True, "1")
            MaybeAddCommandParameter("VacationHours", command, SqlDbType.SmallInt, True, "0")
            MaybeAddCommandParameter("SickLeaveHours", command, SqlDbType.SmallInt, True, "0")
            conn.Open()

            employeeID = CInt(command.ExecuteScalar())
        End Using

        CreateEmployeeAdddress(employeeID, Integer.Parse(contactDictionary("AddressID"), _
            System.Globalization.CultureInfo.InvariantCulture))
        CreateEmployeeDepartmentHistory(employeeID, Integer.Parse( _
            contactDictionary("DepartmentID"), _
            System.Globalization.CultureInfo.InvariantCulture), _
            Integer.Parse(contactDictionary("ShiftID"), _
            System.Globalization.CultureInfo.InvariantCulture))
    End Sub

    Public Sub CreateAddress()
        Using conn As New SqlConnection("context connection=true")
            Dim command As SqlCommand = conn.CreateCommand()

            ResetCounters(4)

            Dim parameters As String = String.Format(CultureInfo.InvariantCulture, _
                "AddressLine1{0}, City, StateProvinceID, PostalCode", _
                MaybeParameter("AddressLine2"))
            Dim values As String = String.Format(CultureInfo.InvariantCulture, _
                "@AddressLine1{0}, @City, @StateProvinceID, @PostalCode", _
                MaybeValue("AddressLine2"))

            command.CommandText = String.Format(CultureInfo.InvariantCulture, _
                "INSERT INTO Person.Address ({0}) VALUES ({1}); SELECT CAST(SCOPE_IDENTITY() as Int);", _
                parameters, values)
            MaybeAddCommandParameter("AddressLine1", command, SqlDbType.NVarChar, 60, True, String.Empty)
            MaybeAddCommandParameter("AddressLine2", command, SqlDbType.NVarChar, 60, False, Nothing)
            MaybeAddCommandParameter("City", command, SqlDbType.NVarChar, 30, True, String.Empty)
            MaybeAddCommandParameter("StateProvinceID", command, SqlDbType.Int, True, String.Empty)
            MaybeAddCommandParameter("PostalCode", command, SqlDbType.NVarChar, 15, True, String.Empty)
            conn.Open()

            contactDictionary("AddressID") = command.ExecuteScalar().ToString()
        End Using
    End Sub

   
    Public Shared Sub CreateEmployeeAdddress(ByVal employeeID As Integer, ByVal addressID As Integer)
        Using conn As New SqlConnection("context connection=true")

            Dim cmd As SqlCommand = conn.CreateCommand()
            cmd.CommandText = "INSERT INTO HumanResources.EmployeeAddress " + "(EmployeeID, AddressID) VALUES (@EmployeeID, @AddressID)"
            cmd.Parameters.AddWithValue("@EmployeeID", employeeID)
            cmd.Parameters.AddWithValue("@AddressID", addressID)
            conn.Open()
            cmd.ExecuteNonQuery()
        End Using
    End Sub

  
    Public Shared Sub CreateEmployeeDepartmentHistory(ByVal employeeID As Integer, ByVal departmentID As Integer, ByVal shiftID As Integer)
        Using conn As New SqlConnection("context connection=true")

            Dim cmd As SqlCommand = conn.CreateCommand()
            cmd.CommandText = "INSERT INTO HumanResources.EmployeeDepartmentHistory " + "(EmployeeID, DepartmentID, ShiftID, StartDate) VALUES " + "(@EmployeeID, @DepartmentID, @ShiftID, @StartDate)"
            cmd.Parameters.AddWithValue("@EmployeeID", employeeID)
            cmd.Parameters.AddWithValue("@DepartmentID", departmentID)
            cmd.Parameters.AddWithValue("@ShiftID", shiftID)
            cmd.Parameters.AddWithValue("@StartDate", DateTime.Now)
            conn.Open()
            cmd.ExecuteNonQuery()
        End Using
    End Sub
End Class
Public Class IndividualCreator
    Inherits CustomerCreator

    Public Overrides Sub Create()
        MyBase.Create()
        Using conn As New SqlConnection("context connection=true")
            Dim command As SqlCommand = conn.CreateCommand()

            ResetCounters(2)
            Dim parameters As String = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "CustomerID, ContactID{0}", MaybeParameter("Demographics"))
            Dim values As String = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "@CustomerID, @ContactID{0}", MaybeValue("Demographics"))
            command.CommandText = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "INSERT INTO Sales.Individual ({0}) VALUES ({1});", parameters, values)
            MaybeAddCommandParameter("CustomerID", command, SqlDbType.Int, True, String.Empty)
            MaybeAddCommandParameter("ContactID", command, SqlDbType.Int, True, String.Empty)
            MaybeAddCommandParameter("Demographics", command, SqlDbType.Xml, False, Nothing)
            conn.Open()
            command.ExecuteNonQuery()
        End Using
    End Sub
End Class
Public Class StoreCreator
    Inherits ContactCreator

    Public Overrides Sub Create()
        MyBase.Create()
        Using conn As New SqlConnection("context connection=true")

            Dim command As SqlCommand = conn.CreateCommand()

            command.CommandText = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "INSERT INTO Sales.StoreContact (CustomerID, ContactID, ContactTypeID) VALUES (@CustomerID, @ContactID, @ContactTypeID);")
            MaybeAddCommandParameter("CustomerID", command, SqlDbType.Int, True, String.Empty)
            MaybeAddCommandParameter("ContactID", command, SqlDbType.Int, True, String.Empty)
            MaybeAddCommandParameter("ContactTypeID", command, SqlDbType.TinyInt, True, String.Empty)
            conn.Open()
            command.ExecuteNonQuery()
        End Using
    End Sub
End Class
Public Class VendorCreator
    Inherits ContactCreator

    Public Overrides Sub Create()
        MyBase.Create()
        Using conn As New SqlConnection("context connection=true")

            Dim command As SqlCommand = conn.CreateCommand()

            Dim parameters As String = "VendorID, ContactID, ContactTypeID"
            Dim values As String = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "@VendorID, @ContactID, @ContactTypeID")

            command.CommandText = String.Format( _
                System.Globalization.CultureInfo.InvariantCulture, _
                "INSERT INTO Purchasing.VendorContact ({0}) VALUES ({1});", _
                parameters, values)
            MaybeAddCommandParameter("VendorID", command, SqlDbType.Int, True, String.Empty)
            MaybeAddCommandParameter("ContactID", command, SqlDbType.Int, True, String.Empty)
            MaybeAddCommandParameter("ContactTypeID", command, SqlDbType.TinyInt, True, String.Empty)
            conn.Open()
            command.ExecuteNonQuery()
        End Using
    End Sub

End Class

This is the Transact-SQL installation script (Install.sql), which deploys the assembly and creates the stored procedure in the database.

use AdventureWorks
GO

DECLARE @contactID Int;
DECLARE @customerID Int;

EXEC dbo.usp_CreateContact N'<Contact xmlns="http://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ContactData"><Individual>
<Title>Dr.</Title>
<FirstName>Kim</FirstName>
<LastName>Smith</LastName>
<EmailAddress>kim@proseware.com</EmailAddress>
<PasswordHash>F1AF7A6028F2FEA29292C09603F1C209BB84B518</PasswordHash>
<PasswordSalt>2Hdr7Jc=</PasswordSalt>
<Demographics>
<IndividualSurvey xmlns="http://schemas.microsoft.com/sqlserver/2004/07/adventure-works/IndividualSurvey">
<TotalChildren>2</TotalChildren>
<NumberChildrenAtHome>1</NumberChildrenAtHome>
</IndividualSurvey>
</Demographics>
</Individual>
</Contact>', @contactID OUTPUT, @customerID OUTPUT;

PRINT 'Individual Contact ID = ' + CAST(@contactID as varchar(10));
PRINT 'Individual Customer ID = ' + CAST(@customerID as varchar(10));

EXEC dbo.usp_CreateContact N'
<Contact xmlns="http://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ContactData"><Store>
<FirstName>Catherine</FirstName>
<LastName>Smith</LastName>
<EmailAddress>catherine@proseware.com</EmailAddress>
<PasswordHash>D584F3AC519BA083DD814023495F267E6A613F7C</PasswordHash>
<PasswordSalt>bseDC8g=</PasswordSalt>
<CustomerID>391</CustomerID>
<ContactTypeID>14</ContactTypeID>
</Store>
</Contact>', @contactID OUTPUT, @customerID OUTPUT;

PRINT 'Store Contact ID = ' + CAST(@contactID as varchar(10));
PRINT 'Store Customer ID = ' + CAST(@customerID as varchar(10));

EXEC dbo.usp_CreateContact N'
<Contact xmlns="http://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ContactData"><Vendor>
<FirstName>Amy</FirstName>
<LastName>Smith</LastName>
<EmailAddress>amy@proseware.com</EmailAddress>
<PasswordHash>00753C6EEC3659B4A5C30AC048F258C610EBE248</PasswordHash>
<PasswordSalt>wyUl4hA=</PasswordSalt>
<VendorID>7</VendorID>
<ContactTypeID>17</ContactTypeID>
</Vendor>
</Contact>', @contactID OUTPUT, @customerID OUTPUT;

PRINT 'Vendor Contact ID = ' + CAST(@contactID as varchar(10));
PRINT 'Vendor Customer ID = ' + CAST(@customerID as varchar(10));

EXEC dbo.usp_CreateContact N'
<Contact xmlns="http://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ContactData"><Employee>
<FirstName>Ramona</FirstName>
<LastName>Smith</LastName>
<EmailAddress>ramona@proseware.com</EmailAddress>
<PasswordHash>4BE320740C7461F79A3CE3E177EA03A9FE3DDD26</PasswordHash>
<PasswordSalt>Pfz9Qzg=</PasswordSalt>
<NationalIDNumber>739117</NationalIDNumber>
<LoginID>ramonas</LoginID>
<DepartmentID>11</DepartmentID>
<ManagerID>42</ManagerID>
<ShiftID>1</ShiftID>
<JobTitle>Information System Specialist</JobTitle>
<Address>
<AddressLine1>3 Penny Lane</AddressLine1>
<AddressLine2>Apartment 2A</AddressLine2>
<City>Seattle</City>
<StateProvinceID>79</StateProvinceID>
<PostalCode>98121</PostalCode>
</Address>
<BirthDate>1972-04-01T03:29:17-08:00</BirthDate>
<MaritalStatus>M</MaritalStatus>
<Gender>F</Gender>
<HireDate>1999-08-07T13:35:17-08:00</HireDate>
<SalariedFlag>true</SalariedFlag>
<VacationHours>12</VacationHours>
<SickLeaveHours>8</SickLeaveHours>
</Employee>
</Contact>', @contactID OUTPUT, @customerID OUTPUT;

PRINT 'Employee Contact ID = ' + CAST(@contactID as varchar(10));

PRINT 'Employee Customer ID = ' + CAST(@customerID as varchar(10));

The following Transact-SQL removes the assembly, stored procedure and inserted data from the database.

USE AdventureWorks
GO
--Individual
DECLARE @ContactID int;
DECLARE @customerID int;
SELECT  @ContactID = co.ContactID, @customerID = c.CustomerID 
FROM Sales.Customer AS c 
JOIN Sales.Individual AS i on c.CustomerID = i.CustomerID 
JOIN Person.Contact AS co on i.ContactID = co.ContactID 
WHERE co.EmailAddress='kim@proseware.com';
DELETE Sales.Individual WHERE ContactID = @ContactID;
DELETE Sales.Customer WHERE CustomerID = @customerID;
DELETE Person.Contact WHERE ContactID = @ContactID;
GO

-- Store Contact

DECLARE @ContactID int;
SELECT  @ContactID = co.ContactID 
FROM Person.Contact AS co 
WHERE co.EmailAddress='catherine@proseware.com';
DELETE Sales.StoreContact WHERE ContactID = @ContactID;
DELETE Person.Contact WHERE ContactID = @ContactID;
GO

-- Vendor Contact

DECLARE @ContactID int;
SELECT  @ContactID = co.ContactID FROM  Person.Contact AS co 
WHERE co.EmailAddress='amy@proseware.com';
DELETE Purchasing.VendorContact WHERE ContactID = @ContactID;
DELETE Person.Contact WHERE ContactID = @ContactID;
GO

-- Employee Contact

DECLARE @ContactID int;
DECLARE @EmployeeID int;
DECLARE @AddressID int;
SELECT  @ContactID = co.ContactID 
FROM  Person.Contact AS co 
WHERE co.EmailAddress='ramona@proseware.com';
SELECT @EmployeeID = e.EmployeeID
FROM HumanResources.Employee AS e
WHERE ContactID = @ContactID; 
SELECT @AddressID = ea.AddressID
FROM HumanResources.EmployeeAddress AS ea
WHERE EmployeeID = @EmployeeID;
DELETE HumanResources.EmployeeAddress 
WHERE EmployeeID = @EmployeeID AND AddressID = @AddressID;
DELETE Person.Address
WHERE AddressID = @AddressID;
DELETE HumanResources.EmployeeDepartmentHistory
WHERE EmployeeID = @EmployeeID;
DISABLE TRIGGER [HumanResources].[dEmployee] ON [HumanResources].[Employee];
DELETE HumanResources.Employee WHERE ContactID = @ContactID;
ENABLE TRIGGER [HumanResources].[dEmployee] ON [HumanResources].[Employee];
DELETE Person.Contact WHERE ContactID = @ContactID;
GO

IF EXISTS (SELECT * FROM sys.xml_schema_collections WHERE [name] = N'ContactDataSchemaCollection')
DROP XML SCHEMA COLLECTION Person.ContactDataSchemaCollection;
GO

IF EXISTS (SELECT * FROM sys.procedures WHERE [name] = N'usp_CreateContact')

DROP PROCEDURE [dbo].[usp_CreateContact];
GO

IF EXISTS (SELECT * FROM sys.assemblies WHERE [name] = N'Contacts') 
DROP ASSEMBLY Contacts;
GO

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