Question

我只需要对dbo_ordetail.typee进行分组，但是这段代码坚持要在分组中添加orderno,dued,deld如何只用dbo_ordetail.typee组重写SQL Server 2005中的波纹管代码。

来自ms访问的SQL查询

SELECT    dbo_ordetail.typee, Sum(dbo_ordetail.qty) AS SumOfqty, 
          (SELECT sum(dbo_ordetail.qty)
               FROM dbo_ordetail
               WHERE dbo_ordetail.ordern=o.orderno AND
                   datediff("d",now(), o.dued) > 30 AND
                   o.deld is NULL
          ) AS 30day
FROM      dbo_ordert o INNER JOIN dbo_ordetail ON o.orderno = dbo_ordetail.ordern
GROUP BY  dbo_ordetail.typee;

Answer 1

编译器因在main-query和子查询中使用dbo_orderdetail而感到困惑。尝试用不同的别名来区分它们：

SELECT 
   dbo_od.typee, 
   Sum(dbo_od.qty) AS SumOfqty, 
   (SELECT sum(dbo_od_1.qty) 
       FROM dbo_ordetail dbo_od_1
       where dbo_od_1.ordern=o.orderno 
       and datediff("d",now(), o.dued) > 30 
       AND o.deld is NULL) as 30day 
FROM dbo_ordert o 
INNER JOIN dbo_ordetail dbo_od ON o.orderno = dbo_od.ordern 
GROUP BY dbo_od.typee

现在，您可以在两种情况下明确区分两个表。

Answer 2

你的查询形成错误..应该如下

        SELECT    dbo_ordetail.typee, Sum(dbo_ordetail.qty) AS SumOfqty, 30day
    from

    (SELECT o.orderno as orderno  , sum(dbo_ordetail.qty) FROM dbo_ordetail
        WHERE     dbo_ordetail.ordern=o.orderno and datediff("d",now(), o.dued) > 30 AND o.deld is NULL) AS 30day
group by o.orderno,o.dued,o.deld)
        o INNER JOIN dbo_ordetail ON o.orderno = dbo_ordetail.ordern
        GROUP BY  dbo_ordetail.typee;

Answer 3

也许这对你有用：

SELECT typee, SUM(qty) AS SumOfqty, _30day
FROM    
    (SELECT   dbo_ordetail.typee, dbo_ordetail.qty, 
              (SELECT sum(dbo_ordetail.qty)
               FROM   dbo_ordetail
               WHERE  dbo_ordetail.ordern=o.orderno AND
                      DATEDIFF(d, GETDATE(), o.dued) > 30 AND
                      o.deld is NULL
              ) AS _30day
     FROM     dbo_ordert o INNER JOIN dbo_ordetail ON o.orderno = dbo_ordetail.ordern) t
GROUP BY  typee, _30day;

列名不能以SQL Server中的数字开头，所以我用下划线作为前缀。

子查询不想分组

3 个答案: