Question

我正在尝试将SQL命令作为SQL数据源中的变量。

"SELECT   " + (DT_WSTR, 25) @[User::valVariable] + " As Value from dbo.MyTable WHERE        (Key= " +  (DT_WSTR, 25)@[User::MyKey] + ")"

这是一个变量表达式，为此生成的值是：

SELECT 1 As Value from dbo.MyTable WHERE (Key = 0)

我想要动态传递Key值，这可以由？设置，但是我无法这样做。有没有办法实现它？

提前致谢。

Answer 1

这是我在数据流中工作的脚本组件。只读变量valVariable和MyKey。 ReadWrite变量MySelect。

Imports System
Imports System.Data
Imports System.Math
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper
Public Class ScriptMain
    Inherits UserComponent
    Private StrTemp As String
    Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
        If UCase(Row.Current) = "Y" Then
            StrTemp = "Select " & CStr(Me.Variables.MyVariable) & " as Value  from dbo.Table Where (Key =" & CStr(Me.Variables.MyKey) & ")"
        End If
    End Sub
    Public Overrides Sub PostExecute()
        Me.Variables.MySelect = StrTemp
        MsgBox("Select statement: " & Me.Variables.MySelect)
    End Sub
End Class

在sql select语句以及where子句SSIS

1 个答案: