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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)

public Object ExecuteOracleScalar()

Return Value

Type: System.Object
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();

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1

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.

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