Question

如何在没有CTE的情况下编写此查询？

with cte as(
select FK#GharardadeAsli,MAX(PK#Shenase) as PK#Shenase,Max(TarikheSabt) as TarikheSabt from TBL#Gharardad where FK#GharardadeAsli is not null group by FK#GharardadeAsli
)
select * from v#gharardad inner join cte on cte.PK#Shenase = v#gharardad.[Shenase]

Answer 1

怎么样？

SELECT  *
FROM    (
          select  FK#GharardadeAsli
                  , MAX(PK#Shenase) as PK#Shenase
                  , Max(TarikheSabt) as TarikheSabt 
          from    TBL#Gharardad 
          where   FK#GharardadeAsli is not null 
          group by FK#GharardadeAsli
        ) v
        INNER JOIN (
          select  FK#GharardadeAsli
                  , MAX(PK#Shenase) as PK#Shenase
                  , Max(TarikheSabt) as TarikheSabt 
          from    TBL#Gharardad 
          where   FK#GharardadeAsli is not null 
          group by FK#GharardadeAsli
        ) cte ON cte.Shenase = v.Shenase

Answer 2

您可以将其编写为子查询。

select * 
  from v#gharardad 
  inner join (select FK#GharardadeAsli,
                     MAX(PK#Shenase) as PK#Shenase,
                     Max(TarikheSabt) as TarikheSabt 
                from TBL#Gharardad 
               where FK#GharardadeAsli is not null 
               group by FK#GharardadeAsli
             ) sub on sub.PK#Shenase = v#gharardad.[Shenase]

Answer 3

声明表变量并执行相同的操作

在没有CTE的情况下编写查询

3 个答案: