Sql 在HAVING子句中引用

是否有方法引用AS，以便我在 有条款吗

快速解释。我的组织分为不同的业务线。我正在尝试查找组织内、整个银行内的应用程序安装总数，我希望将结果限制为仅显示业务线总数超过总数50%的应用程序

谢谢你的帮助

select adp_id,
(select SUM(total) from dbo.IQCS_AppsByCC b where coctr_L3 = '99990001594' and b.adp_id = a.adp_id)as bl_total,
(select SUM(total) from dbo.IQCS_AppsByCC c where c.adp_id = a.adp_id)as bank_total
from dbo.IQCS_AppsByCC a
where coctr_L3 = '99990001594'
and adp_id IN(19897, 15034, 17381, 13840 )
group by adp_id
HAVING bl_total / bank_total * 100 > 50

错误代码207，SQL状态S0001:列名“bl_total”无效

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潜在的重复问题没有解决方案或其他解决方法，因此毫无用处。

您可以使用条件聚合并使用表达式而不是别名：

select adp_id,
  SUM(CASE WHEN coctr_L3 = '99990001594' THEN total ELSE 0.0 END)as bl_total,
  SUM(total) as bank_total
from dbo.IQCS_AppsByCC a
where coctr_L3 = '99990001594'
and adp_id IN(19897, 15034, 17381, 13840 )
group by adp_id
HAVING 
 SUM(CASE WHEN coctr_L3 = '99990001594' THEN total ELSE 0 END)/SUM(total)*100>50

---

许多数据库在

having

子句中支持别名。您可以简化查询，也许这会起作用（可能不会）：

在任何情况下，您都可以将其切换到：

having sum(case when coctr_L3 = '99990001594' then total end) > 0.5 * sum(total)

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将原始查询包装到派生表中。然后，您可以在outer

WHERE

子句中使用列别名，而不是在

HAVING

中使用列别名。（同样的结果。）

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我认为有更好的方法
第一个和只是主和的重复

 select a.adp_id, sum(total) from as bl_total, b.ttl as bank_total
   from dbo.IQCS_AppsByCC a 
   join ( select adp_id, sum(total) as ttl
            from dbo.IQCS_AppsByCC 
           where adp_id IN (19897, 15034, 17381, 13840)
           group by adp_id 
        ) b
     on b.adp_id = a.adp_id
  where coctr_L3 = '99990001594'
    and a.adp_id IN (19897, 15034, 17381, 13840)
  group by a.adp_id
 HAVING sum(total) * 2 > b.ttl 

---

您使用的是哪一个数据库？Microsoft SQL Server 2005第一个数据库的可能重复项而不仅仅是总和（total）？

select * from
(
    select adp_id,
    (select SUM(total) from dbo.IQCS_AppsByCC b where coctr_L3 = '99990001594' and b.adp_id = a.adp_id)as bl_total,
    (select SUM(total) from dbo.IQCS_AppsByCC c where c.adp_id = a.adp_id)as bank_total
    from dbo.IQCS_AppsByCC a
    where coctr_L3 = '99990001594'
    and adp_id IN(19897, 15034, 17381, 13840 )
    group by adp_id
) dt
WHERE bl_total / bank_total * 100 > 50

 select a.adp_id, sum(total) from as bl_total, b.ttl as bank_total
   from dbo.IQCS_AppsByCC a 
   join ( select adp_id, sum(total) as ttl
            from dbo.IQCS_AppsByCC 
           where adp_id IN (19897, 15034, 17381, 13840)
           group by adp_id 
        ) b
     on b.adp_id = a.adp_id
  where coctr_L3 = '99990001594'
    and a.adp_id IN (19897, 15034, 17381, 13840)
  group by a.adp_id
 HAVING sum(total) * 2 > b.ttl