Represents a SQL transaction to be made in the SQL Server database.
The following example creates a
SqlConnection and a
SqlTransaction. It also demonstrates how to use the
SqlConnection.BeginTransaction,
Commit, and
Rollback methods.
public static void RunSqlTransaction(string myConnString) {
using (SqlConnection myConnection = new SqlConnection(myConnString)) {
myConnection.Open();
// Start a local transaction
SqlTransaction myTrans = myConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted);
SqlCommand myCommand = myConnection.CreateCommand();
try {
myCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(52, 'DEVELOPMENT')";
myCommand.ExecuteNonQuery();
myCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(62, 'PRODUCTION')";
myCommand.ExecuteNonQuery();
myTrans.Commit();
Console.WriteLine("Both records are written to database.");
}
catch (Exception e) {
myTrans.Rollback();
Console.WriteLine(e.ToString());
Console.WriteLine("Neither record was written to database.");
}
finally {
myCommand.Dispose();
myTrans.Dispose();
}
}
}
Public Shared Sub RunSqlTransaction(myConnString As String)
Using myConnection As New SqlConnection(myConnString)
myConnection.Open()
' Start a local transaction
Dim myTrans As SqlTransaction = myConnection.BeginTransaction(System.Data.IsolationLevel.ReadCommitted)
Dim myCommand As SqlCommand = myConnection.CreateCommand()
Try
myCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(52, 'DEVELOPMENT')"
myCommand.ExecuteNonQuery()
myCommand.CommandText = "INSERT INTO Dept(DeptNo, DName) Values(62, 'PRODUCTION')"
myCommand.ExecuteNonQuery()
myTrans.Commit()
Console.WriteLine("Both records are written to database.")
Catch e As Exception
myTrans.Rollback()
Console.WriteLine(e.ToString())
Console.WriteLine("Neither record was written to database.")
Finally
myCommand.Dispose()
myTrans.Dispose()
End Try
End Using
End Sub
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2