Question

我有一个SQL查询，它使用Do Until循环从数据库中检索值。循环中SQLCondition的值显示正确，但如果我想在循环外显示值，则它不起作用：

If rReseller > 0 Then
    sql2 = "SELECT rl.countryid FROM reseller_locator rl WHERE rl.resellerid = " & rReseller & " AND rl.countryid <> '" & iCountryID & "'"

    'response.write sql2
    Set rsResellerLocator=Conn.Execute(sql2)

    If not rsResellerLocator.EOF Then 

        do until rsResellerLocator.eof  

            iRCountryID = rsResellerLocator("countryid")
            SQLCondition = iRCountryID & ", "

            response.write SQLCondition

        rsResellerLocator.movenext
        loop    

    Else
        SQLCondition = ""
    End If  
        response.write SQLCondition
End If

循环内部的response.write显示“2,3,4,5”。但是循环外部的response.write显示“5”。

如何将循环内部的值存储到字符串中以便在查询外使用？

Answer 1

你确定内循环是否正常工作？我认为它没有理由显示＆＃34; 2,3,4,5＆＃34; - 您的代码现在的方式，它总是只显示一个数字。试试这个：

替换

SQLCondition = iRCountryID & ", "

使用

SQLCondition = SQLCondition  & ", " & iRCountryID

这将保存一系列条件，否则您只是保存最新条件

Answer 2

也使用此功能将需要的数据保存在字符串中

If rReseller > 0 Then
    sql2 = "SELECT rl.countryid FROM reseller_locator rl WHERE rl.resellerid = " & rReseller & " AND rl.countryid <> '" & iCountryID & "'"

    'response.write sql2
    Set rsResellerLocator=Conn.Execute(sql2)

    If not rsResellerLocator.EOF Then 

        do until rsResellerLocator.eof  

            iRCountryID = rsResellerLocator("countryid")
            SQLCondition = iRCountryID & ", "
    
     SQLConditionAll=""&SQLConditionAll&""&SQLCondition&""
    
            response.write SQLCondition

        rsResellerLocator.movenext
        loop    

    Else
        SQLCondition = ""
    End If  
        response.write SQLCondition
End If

现在您可以使用Response.write SQLConditionAll 太用字符串显示需要的数据

Response.Write到String - ASP Classic

2 个答案: