Question

我创建了一个Oracle事务，尝试将一些数据保存在两个表中，并在第二个过程中导致错误，以调用回滚并检查它是否有效。

第一个过程使用sys.dbms_scheduler.create_job在USER_SCHEDULER_JOBS中创建作业。

Private Function CreateJobDef() As Integer
    Try
        Cursor.Current = Cursors.WaitCursor
        conn = New OracleConnection
        conn.ConnectionString = gApp.ConnectString
        conn.Open()
        Dim cmd As OracleCommand = conn.CreateCommand()
        Dim oraclTrans As OracleTransaction
        oraclTrans = conn.BeginTransaction()

        cmd.Transaction = oraclTrans

        Try
            cmd.CommandText = "TEST.CREATE_JOB_SCHEDULE"
            cmd.CommandType = CommandType.StoredProcedure
            cmd.Parameters.Clear()
            OracleCommandBuilder.DeriveParameters(cmd)
            cmd.Parameters("in_job_name").Value = txtName.Text
            cmd.Parameters("in_schedule_name").Value = cboSchedule.SelectedValue
            cmd.Parameters("in_enabled").Value = If(chkEnabled.Checked, 1, 0)
            cmd.Parameters("in_comments").Value = txtComments.Text
            cmd.ExecuteNonQuery()
            'Everything is OK
            '-----------------------------------------------
            cmd.CommandText = "TEST.Update_Job_Def"
            cmd.CommandType = CommandType.StoredProcedure
            cmd.Parameters.Clear()
            OracleCommandBuilder.DeriveParameters(cmd)
            cmd.Parameters("in_job_id").Value = "WQwqwq" 'I set this to a string to cause an error in the second procedure to check the rollback
            cmd.Parameters("in_job_name").Value = txtName.Text
            cmd.Parameters("in_job_type").Value = cboType.SelectedItem
            cmd.Parameters("in_report_nav_id").Value = cboReport.SelectedValue
            cmd.Parameters("in_mail_address_to").Value = txtMailTo.Text
            cmd.ExecuteNonQuery()

            oraclTrans.Commit()
        Catch ex As OracleException
            Msgbox(ex.ToString)
            oraclTrans.Rollback()
        Catch ex As Exception
               Msgbox(ex.ToString)
            oraclTrans.Rollback()
        Finally
            conn.Close()
            If conn IsNot Nothing Then conn.Dispose()
            If cmd IsNot Nothing Then cmd.Dispose()
        End Try
    Catch ex As OracleException
          Msgbox(ex.ToString)
    Catch ex As Exception
           Msgbox(ex.ToString)
    Finally
        Cursor.Current = Cursors.Default
    End Try
End Function

问题是第一个过程是创建一个新Job，虽然我在第二个过程中导致了一个错误并且调用了回滚。有什么想法吗？

由于

Answer 1

在DDL语句和许多Oracle过程调用中存在隐式提交，这些调用创建或修改对象（如计划作业）。因此，您无法回滚作业创建过程。

Oracle事务回滚不起作用

1 个答案: