Session.ExecuteNonQuery(String) Method

Executes the specified SQL statement and returns the number of rows affected.

Namespace: DevExpress.Xpo

Assembly: DevExpress.Xpo.v24.1.dll

NuGet Packages: DevExpress.Win.PivotGrid, DevExpress.Win.TreeMap, DevExpress.Xpo

NuGet Package: DevExpress.Xpo

Declaration

C#

public int ExecuteNonQuery(
    string sql
)

VB.NET

Public Function ExecuteNonQuery(
    sql As String
) As Integer

Parameters

Name	Type	Description
sql	String	Specifies an SQL statement.

Returns

Type	Description
Int32	The number of rows affected by the executed SQL statement.

Remarks

Use ExecuteNonQuery to execute SQL statements that do not produce result sets, such as UPDATE, INSERT, and DELETE statements.

The example below demonstrates how to use this method. Here, session is the Session instance.

C#

using DevExpress.Xpo;
// ...
public void UpdateOrderDetails() {
    const string queryString = 
        "UPDATE [Northwind].[dbo].[Order Details] SET [Discount] = 0.15";
    int rowsAffected = session.ExecuteNonQuery(queryString);
}

VB.NET

Imports DevExpress.Xpo
' ...
Public Sub UpdateOrderDetails()
    Const queryString As String = "UPDATE [Northwind].[dbo].[Order Details] SET [Discount] = 0.15"
    Dim rowsAffected As Integer = session.ExecuteNonQuery(queryString)
End Sub

To learn more about executing SQL statements in XPO, refer to Direct SQL Queries.

Note

The ExecuteNonQuery method sends statements directly, so the correct statement syntax depends on a particular database server.