OdbcCommand Class
Represents an SQL statement or stored procedure to execute against a data source. This class cannot be inherited.
System::MarshalByRefObject
System.ComponentModel::Component
System.Data.Common::DbCommand
System.Data.Odbc::OdbcCommand
Assembly: System.Data (in System.Data.dll)
The OdbcCommand type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | OdbcCommand() | Initializes a new instance of the OdbcCommand class. |
![]() | OdbcCommand(String) | Initializes a new instance of the OdbcCommand class with the text of the query. |
![]() | OdbcCommand(String, OdbcConnection) | Initializes a new instance of the OdbcCommand class with the text of the query and an OdbcConnection object. |
![]() | OdbcCommand(String, OdbcConnection, OdbcTransaction) | Initializes a new instance of the OdbcCommand class with the text of the query, an OdbcConnection object, and the Transaction. |
| Name | Description | |
|---|---|---|
![]() | CanRaiseEvents | Gets a value indicating whether the component can raise an event. (Inherited from Component.) |
![]() | CommandText | Gets or sets the SQL statement or stored procedure to execute against the data source. (Overrides DbCommand::CommandText.) |
![]() | CommandTimeout | Gets or sets the wait time before terminating an attempt to execute a command and generating an error. (Overrides DbCommand::CommandTimeout.) |
![]() | CommandType | Gets or sets a value that indicates how the CommandText property is interpreted. (Overrides DbCommand::CommandType.) |
![]() | Connection | Gets or sets the OdbcConnection used by this instance of the OdbcCommand. |
![]() | Container | Gets the IContainer that contains the Component. (Inherited from Component.) |
![]() | DbConnection | Gets or sets the DbConnection used by this DbCommand. (Inherited from DbCommand.) |
![]() | DbParameterCollection | Gets the collection of DbParameter objects. (Inherited from DbCommand.) |
![]() | DbTransaction | Gets or sets the DbTransaction within which this DbCommand object executes. (Inherited from DbCommand.) |
![]() | DesignMode | Gets a value that indicates whether the Component is currently in design mode. (Inherited from Component.) |
![]() | DesignTimeVisible | Gets or sets a value that indicates whether the command object should be visible in a customized interface control. (Overrides DbCommand::DesignTimeVisible.) |
![]() | Events | Gets the list of event handlers that are attached to this Component. (Inherited from Component.) |
![]() | Parameters | Gets the OdbcParameterCollection. |
![]() | Site | Gets or sets the ISite of the Component. (Inherited from Component.) |
![]() | Transaction | Gets or sets the OdbcTransaction within which the OdbcCommand executes. |
![]() | UpdatedRowSource | Gets or sets a value that specifies how the Update method should apply command results to the DataRow. (Overrides DbCommand::UpdatedRowSource.) |
| Name | Description | |
|---|---|---|
![]() | Cancel | Tries to cancel the execution of an OdbcCommand. (Overrides DbCommand::Cancel().) |
![]() | CreateDbParameter | Creates a new instance of a DbParameter object. (Inherited from DbCommand.) |
![]() | CreateObjRef | Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.) |
![]() | CreateParameter | Creates a new instance of an OdbcParameter object. |
![]() | Dispose() | Releases all resources used by the Component. (Inherited from Component.) |
![]() | Dispose(Boolean) | Releases the unmanaged resources used by the Component and optionally releases the managed resources. (Inherited from Component.) |
![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() | ExecuteDbDataReader | Executes the command text against the connection. (Inherited from DbCommand.) |
![]() | ExecuteNonQuery | Executes an SQL statement against the Connection and returns the number of rows affected. (Overrides DbCommand::ExecuteNonQuery().) |
![]() | ExecuteReader() | Sends the CommandText to the Connection and builds an OdbcDataReader. |
![]() | ExecuteReader(CommandBehavior) | Sends the CommandText to the Connection, and builds an OdbcDataReader using one of the CommandBehavior values. |
![]() | ExecuteScalar | Executes the query, and returns the first column of the first row in the result set returned by the query. Additional columns or rows are ignored. (Overrides DbCommand::ExecuteScalar().) |
![]() | Finalize | Releases unmanaged resources and performs other cleanup operations before the Component is reclaimed by garbage collection. (Inherited from Component.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetLifetimeService | Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
![]() | GetService | Returns an object that represents a service provided by the Component or by its Container. (Inherited from Component.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | InitializeLifetimeService | Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
![]() | MemberwiseClone() | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | MemberwiseClone(Boolean) | Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.) |
![]() | Prepare | Creates a prepared or compiled version of the command at the data source. (Overrides DbCommand::Prepare().) |
![]() | ResetCommandTimeout | Resets the CommandTimeout property to the default value. |
![]() | ToString | Returns a String containing the name of the Component, if any. This method should not be overridden. (Inherited from Component.) |
| Name | Description | |
|---|---|---|
![]() ![]() | ICloneable::Clone | For a description of this member, see ICloneable::Clone. |
![]() ![]() | IDbCommand::Connection | Gets or sets the IDbConnection used by this instance of the IDbCommand. (Inherited from DbCommand.) |
![]() ![]() | IDbCommand::CreateParameter | Creates a new instance of an IDbDataParameter object. (Inherited from DbCommand.) |
![]() ![]() | IDbCommand::ExecuteReader() | Executes the CommandText against the Connection and builds an IDataReader. (Inherited from DbCommand.) |
![]() ![]() | IDbCommand::ExecuteReader(CommandBehavior) | Executes the CommandText against the Connection, and builds an IDataReader using one of the CommandBehavior values. (Inherited from DbCommand.) |
![]() ![]() | IDbCommand::Parameters | Gets the IDataParameterCollection. (Inherited from DbCommand.) |
![]() ![]() | IDbCommand::Transaction | Gets or sets the DbTransaction within which this DbCommand object executes. (Inherited from DbCommand.) |
The OdbcCommand class provides the following methods for executing commands against a data source:
Item | Description |
|---|---|
Executes commands that return rows. | |
Executes commands such as SQL INSERT, DELETE, UPDATE, and SET statements. | |
Retrieves a single value, for example, an aggregate value, from a database. |
You can reset the CommandText property and reuse the OdbcCommand object. However, you must close the OdbcDataReader before you can execute a new or previous command.
If execution of the command causes a fatal OdbcException such as a SQL Server severity level of 20 or more, OdbcConnection may close. However, the user can reopen the connection and continue.
The following example uses the ExecuteReader method of the OdbcCommand class, together with the OdbcDataReader and OdbcConnection classes, to select rows from a table.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

