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OracleCommand.ExecuteOracleScalar Method

Executes the query, and returns the first column of the first row in the result set returned by the query as an Oracle-specific data type. Extra columns or rows are ignored.

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

'Declaration
Public Function ExecuteOracleScalar As Object
'Usage
Dim instance As OracleCommand
Dim returnValue As Object

returnValue = instance.ExecuteOracleScalar
public Object ExecuteOracleScalar ()
public function ExecuteOracleScalar () : Object

Return Value

The first column of the first row in the result set as an Oracle-specific data type, or a null reference if the result is a REF CURSOR.

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

A typical ExecuteOracleScalar query can be formatted as in the following C# example:

command.CommandText = "SELECT COUNT(*) AS NumberOfRegions FROM Region";
count = command.ExecuteOracleScalar();

Windows 98, Windows 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 .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1

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