VB.NET事务和SQLDataReader

Question

请看下面的代码：

Public Function Orphand() 
        Dim objCon As SqlConnection
        Dim objCommand As SqlCommand
        Dim objCommand2 As SqlCommand
        Dim objCommand3 As SqlCommand
        Dim objDR As SqlDataReader
        Dim transaction As SqlTransaction
        Try
            objCon = New SqlConnection(_ConString)
            objCommand = New SqlCommand
            objCommand2 = New SqlCommand
            objCommand3 = New SqlCommand
            objCommand.Connection = objCon
            objCommand2.Connection = objCon
            objCommand3.Connection = objCon
            objCon.Open()
            transaction = objCon.BeginTransaction
            objCommand.Transaction = transaction
            objCommand2.Transaction = transaction
            objCommand3.Transaction = transaction
            Using objCon
                objCommand.CommandText = "SELECT TOP 3 * FROM dbReviews"
                objDR = objCommand.ExecuteReader
                Do While objDR.Read
                    objCommand2.CommandText = "INSERT INTO dbReviewChangesVALUES (1,1,'1',1,'2012-01-09')"
                    objCommand2.ExecuteNonQuery()
                    objCommand3.CommandText = "INSERT INTO dbReviewChangesVALUES (1,1,'1',1,'2012-01-09')"
                    objCommand3.ExecuteNonQuery()
                Loop
                transaction.Commit()
                objDR.Close()
            End Using
        Catch ex As Exception

        End Try
    End Function
End Class

有没有一种方法可以在每个循环中提交事务，而不是等到所有记录都循环之后，还是这种不良做法？

我花了一些时间在Google上搜索。 我认为我不必发布问题，但是我没有找到答案。

Answer 1

是的，在循环内打开一个事务。