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VB.NET SqlTriggerContext.TriggerAction属性代码示例

本文整理汇总了VB.NET中Microsoft.SqlServer.Server.SqlTriggerContext.TriggerAction属性的典型用法代码示例。如果您正苦于以下问题:VB.NET SqlTriggerContext.TriggerAction属性的具体用法?VB.NET SqlTriggerContext.TriggerAction怎么用?VB.NET SqlTriggerContext.TriggerAction使用的例子?那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在Microsoft.SqlServer.Server.SqlTriggerContext的用法示例。


在下文中一共展示了SqlTriggerContext.TriggerAction属性的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的VB.NET代码示例。

示例1: TableAudit

<SqlTrigger(Name:="TableAudit", Target:="[dbo].[Users]", Event:="FOR INSERT, DELETE")> _
Public Shared Sub TableAudit()
    Dim command As SqlCommand
    Dim triggContext As Microsoft.SqlServer.Server.SqlTriggerContext
    Dim reader As SqlDataReader

    triggContext = SqlContext.TriggerContext

    Select Case triggContext.TriggerAction

        ' Insert.
        Case TriggerAction.Insert
            Using connection As New SqlConnection("context connection=true")

                ' Open the context connection.
                connection.Open()

                ' Get the inserted row.
                command = New SqlCommand("SELECT * FROM INSERTED;", connection)
                reader = command.ExecuteReader()
                reader.Read()

                ' Retrieve data from inserted row.

                reader.Close()
            End Using

        ' Delete.
        Case TriggerAction.Delete
            Using connection As New SqlConnection("context connection=true")

            ' Open the context connection.
            connection.Open()

            ' Get the deleted rows.
            command = New SqlCommand("SELECT * FROM DELETED;", connection)

            reader = command.ExecuteReader()

            If reader.HasRows Then

                While reader.Read()

                    ' Retrieve data from deleted rows

                End While

                reader.Close()

           Else
               ' No rows affected.
           End If

       End Using
    End Select
End Sub
开发者ID:VB.NET开发者,项目名称:Microsoft.SqlServer.Server,代码行数:56,代码来源:SqlTriggerContext.TriggerAction


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