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OracleCommand.ExecuteNonQuery Method

Note: This namespace, class, or member is supported only in version 1.1 of the .NET Framework.

Executes an SQL statement against the Connection and returns the number of rows affected.

[Visual Basic]
Public Overridable Function ExecuteNonQuery() As Integer Implements _
   IDbCommand.ExecuteNonQuery
[C#]
public virtual int ExecuteNonQuery();
[C++]
public: virtual int ExecuteNonQuery();
[JScript]
public function ExecuteNonQuery() : int;

Return Value

For UPDATE, INSERT, and DELETE statements, the return value is the number of rows affected by the command. For all other types of statements, the return value is -1.

Implements

IDbCommand.ExecuteNonQuery

Exceptions

Exception Type Condition
InvalidOperationException The connection does not exist.

-or-

The connection is not open.

Remarks

You can use ExecuteNonQuery to perform catalog operations (for example, querying the structure of a database or creating database objects such as tables); or to change the data in a database, without using a DataSet, by executing UPDATE, INSERT, or DELETE statements.

Although ExecuteNonQuery does not return any rows, any output parameters or return values mapped to parameters are populated with data.

For UPDATE, INSERT, and DELETE statements, the return value is the number of rows affected by the command. For all other types of statements, the return value is -1. If a rollback occurs, the return value is also -1.

Example

[Visual Basic, C#, C++] The following example creates an OracleCommand and then executes it by using ExecuteNonQuery. The example is passed a string that is an SQL statement (such as UPDATE, INSERT, or DELETE) and a string to use to connect to the database.

[Visual Basic] 
Public Sub CreateMyOracleCommand(myExecuteQuery As String, _
myConnectionString As String)
    Dim myConnection As New OracleConnection(myConnectionString)
    Dim myCommand As New OracleCommand(myExecuteQuery, myConnection)
    myCommand.Connection.Open()
    myCommand.ExecuteNonQuery()
    MyConnection.Close()
End Sub

[C#] 
public void CreateMyOracleCommand(string myExecuteQuery, string myConnectionString) 
{
   OracleConnection myConnection = new OracleConnection(myConnectionString);
   OracleCommand myCommand = new OracleCommand(myExecuteQuery, myConnection);
   myCommand.Connection.Open();
   myCommand.ExecuteNonQuery();
   myConnection.Close();
}

[C++] 
public:
 void CreateMyOracleCommand(String* myExecuteQuery, String* myConnectionString) 
 {
    OracleConnection* myConnection = new OracleConnection(myConnectionString);
    OracleCommand* myCommand = new OracleCommand(myExecuteQuery, myConnection);
    myCommand->Connection->Open();
    myCommand->ExecuteNonQuery();
    myConnection->Close();
 }

[JScript] No example is available for JScript. To view a Visual Basic, C#, or C++ example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

.NET Framework Security: 

See Also

OracleCommand Class | OracleCommand Members | System.Data.OracleClient Namespace

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