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OdbcCommand.ExecuteScalar Method

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.

Namespace: System.Data.Odbc
Assembly: System.Data (in system.data.dll)

public override Object ExecuteScalar ()
public Object ExecuteScalar ()
public override function ExecuteScalar () : Object
Not applicable.

Return Value

The first column of the first row in the result set, or a null reference if the result set is empty.

Use the ExecuteScalar method to retrieve a single value (for example, an aggregate value) from a data source. This requires less code than using the ExecuteReader method, and then performing the operations required to generate the single value from the data returned by an OdbcDataReader.

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1

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