【 tulaoshi.com - ASP.NET 】
                             
                             ---------SQL生成----------
任务是当用户以逗号来分隔查询的条件,的多条件查询,使用IN(x,y),但是当在数据库(ACCESS)对应的字段是字符型是就会出现错误,那是当然的!如果是IN('x','y')就没有问题!

下面的代码就是对字符串的操作,返回 'x','y'。
'-----接受要处理的字符串-------
 Function Tool_disTest(ByVal TextBefore As String)
 Dim TextAfter() As String
 Dim intNum, intTextLen, k, i As Integer
 intNum = 1
 intTextLen = Len(TextBefore)
 '--------计算有多少的查询条件--------
 For i = 1 To intTextLen
 If Mid(TextBefore, i, 1) = "," Then
 intNum = intNum + 1
 End If
 Next
 '-----------------------------------
 ReDim TextAfter(intNum)
 k = 1
 '--------把每个条件放到数组里---------
 For i = 1 To intTextLen
 If Mid(TextBefore, i, 1) = "," Then
 k += 1
 Else
 TextAfter(k) = TextAfter(k) & Mid(TextBefore, i, 1)
 End If
 Next
 '----------------------
 Dim strTemp As String
 '--------为每一个条件加上''----------
 For i = 1 To intNum
 strTemp = TextAfter(i)
 TextAfter(i) = "'" & strTemp & "'"
 Next
 '----------------------
 strTemp = ""
 '------添加分隔条件用的","------
 For i = 1 To intNum
 strTemp = strTemp & TextAfter(i) & ","
 Next
 '------------------
 '------去除最后一个,------
 strTemp = Mid(strTemp, 1, Len(strTemp) - 1)
 '-------------------
 Return strTemp
 End Function
最后在SQLServer中又试了试,发现SQLServer查询的时候用IN(x,y)来查询字符型是OK的,(SQLServer就是比ACCESS强点

,呵呵)
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