Represents an SQL transaction to be made at a database. This class cannot be inherited.
System.Object
System.MarshalByRefObject
System.Data.Common.DbTransaction
IBM.Data.DB2.DB2Transaction
[Visual Basic]
NotInheritable Public Class DB2Transaction
Inherits DbTransaction
Implements IDbTransaction, IDisposable
[C#]
public sealed class DB2Transaction : DbTransaction,
IDbTransaction, IDisposable
[C++]
public __gc __sealed class DB2Transaction : public
DbTransaction, IDbTransaction, IDisposable
[JScript]
public class DB2Transaction extends DbTransaction implements
IDbTransaction, IDisposable
The application creates an DB2Transaction object by calling BeginTransaction on the DB2®Connection object. All subsequent operations associated with the transaction (for example, committing or aborting the transaction), are performed on the DB2Transaction object.
[Visual Basic, C#] The following example creates a DB2Connection and a DB2Transaction. It also demonstrates how to use the DB2Connection.BeginTransaction, DB2Transaction.Commit, and DB2Transaction.Rollback methods.
[Visual Basic]
Public Sub RunDB2Transaction(myConnString As String)
Dim myConnection As New DB2Connection(myConnString)
myConnection.Open()
Dim myCommand As New DB2Command()
Dim myTrans As DB2Transaction
' Start a local transaction
myTrans = myConnection.BeginTransaction(IsolationLevel.ReadCommitted)
' Assign transaction object for a pending local transaction
myCommand.Transaction = myTrans
Try
myCommand.CommandText = "Insert into org(
DEPTNUMB, DEPTNAME, MANAGER, DIVISION,LOCATION)
VALUES (100, 'Head Office', 160, 'Corporate', 'New York')"
myCommand.ExecuteNonQuery()
myCommand.CommandText = "Insert into org(
DEPTNUMB, DEPTNAME, MANAGER, DIVISION,LOCATION)
VALUES (101, 'New England', 50, 'Eastern', 'Boston')"
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
myConnection.Close()
End Try
End Sub
[C#]
public void RunDB2Transaction(string myConnString)
{
DB2Connection myConnection = new DB2Connection(myConnString);
myConnection.Open();
DB2Command myCommand = new DB2Command();
DB2Transaction myTrans;
// Start a local transaction
myTrans = myConnection.BeginTransaction(IsolationLevel.ReadCommitted);
// Assign transaction object for a pending local transaction
myCommand.Transaction = myTrans;
try
{
myCommand.CommandText = "Insert into org(
DEPTNUMB, DEPTNAME, MANAGER, DIVISION,LOCATION)
VALUES (100, 'Head Office', 160, 'Corporate', 'New York')";
myCommand.ExecuteNonQuery();
myCommand.CommandText = "Insert into org(
DEPTNUMB, DEPTNAME, MANAGER, DIVISION,LOCATION)
VALUES (101, 'New England', 50, 'Eastern', 'Boston')";
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
{
myConnection.Close();
}
}
Any public static (Shared in Visual Basic) members of this type are safe for multithreaded operations. Any instance members are not guaranteed to be thread safe.