MSSQL：必须声明标量变量@rownum

Question

我的一个疑问是游戏的排名。

查询如下，SQL Server Management Studio 显示的错误是：“必须声明标量变量@rownum”

有什么问题吗？

多谢！

 $sql1_1     = "SET @rownum := 0";



$sql2_2       =   "SELECT * FROM (
                      SELECT @rownum := @rownum + 1 AS rank, totalpoints, useridFB, game2points
                      FROM theuser ORDER BY game2points DESC
                      ) as result WHERE useridFB=1234";



        mssql_query($sql1_1); 
        $result = mssql_query($sql2_2);

        $row = mssql_fetch_array($result);
        $therank = $row['rank'];

Answer 1

您在 SQL Server 中使用 MySql 语法。

使用 row_number() 函数重现当前逻辑。

SELECT *
FROM   (SELECT row_number() OVER (ORDER BY game2points DESC) AS [rank],
               totalpoints,
               useridFB,
               game2points
        FROM   theuser) AS result
WHERE  useridFB = 1234  

或者您可能想要根据您希望如何处理关系来调查排名。