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.
Syntax
public override object ExecuteScalar ()
Returns
The first column of the first row in the result set, or a null reference if the result set is empty.
Remarks
Use the OdbcCommand.ExecuteScalar method to retrieve a single value (for example, an aggregate value) from a data source. This requires less code than using the OdbcCommand.ExecuteReader method, and then performing the operations required to generate the single value from the data returned by an System.Data.Odbc.OdbcDataReader.
Requirements
Namespace: System.Data.Odbc
Assembly: System.Data (in System.Data.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0
Assembly: System.Data (in System.Data.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0