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OdbcCommand.ExecuteScalar Method

  • Reference

Definition

Namespace:
System.Data.Odbc
Assembly:
System.Data.Odbc.dll
Assembly:
System.Data.dll
Package:
System.Data.Odbc v6.0.0
Package:
System.Data.Odbc v7.0.0
Package:
System.Data.Odbc v8.0.0
Package:
System.Data.Odbc v9.0.0-preview.2.24128.5
Source:
OdbcCommand.cs
Source:
OdbcCommand.cs
Source:
OdbcCommand.cs

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.

public:
 override System::Object ^ ExecuteScalar();
public:
 virtual System::Object ^ ExecuteScalar();
public override object ExecuteScalar ();
public override object? ExecuteScalar ();
public object ExecuteScalar ();
override this.ExecuteScalar : unit -> obj
abstract member ExecuteScalar : unit -> obj
override this.ExecuteScalar : unit -> obj
Public Overrides Function ExecuteScalar () As Object
Public Function ExecuteScalar () As Object

Returns

Object

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

Implements

ExecuteScalar()

Remarks

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.

Applies to

See also