Sql server Pivot内聚合中的条件
表#温度: 现在,我希望结果集为:Sql server Pivot内聚合中的条件,sql-server,pivot,aggregate-functions,Sql Server,Pivot,Aggregate Functions,表#温度: 现在,我希望结果集为: ID Name Reading Sports Dance Swimming 1 xxx T T T F 2 xyz F F T F 3 yyy T F F T 我编写了以下查询: SELECT * FROM ( SELECT * FROM #Temp )SRC PIVOT
ID Name Reading Sports Dance Swimming
1 xxx T T T F
2 xyz F F T F
3 yyy T F F T
我编写了以下查询:
SELECT * FROM
(
SELECT * FROM #Temp
)SRC
PIVOT
(
COUNT([ID])
FOR [Hobbies] in ([Reading],[Sports],[Dance],[Swimming])
) piv;
我得到了以下结果:
ID Name Reading Sports Dance Swimming
1 xxx 1 1 1 0
2 xyz 0 0 1 0
3 yyy 1 0 0 1
所以,我想在聚合中使用条件,比如if(count(id)=1,然后是'T'或'F')。在Pivots中有可能吗?如何实现它?试试这个
SELECT ID,NAME,
CASE WHEN Reading=1 THEN 'T' ELSE 'F' END AS Reading,
CASE WHEN Sports=1 THEN 'T' ELSE 'F' END AS Sports,
CASE WHEN Dance=1 THEN 'T' ELSE 'F' END AS Dance,
CASE WHEN Swimming =1 THEN 'T' ELSE 'F' END AS Swimming ,
FROM(
--your query here
)t
试试这个
SELECT ID,NAME,
CASE WHEN Reading=1 THEN 'T' ELSE 'F' END AS Reading,
CASE WHEN Sports=1 THEN 'T' ELSE 'F' END AS Sports,
CASE WHEN Dance=1 THEN 'T' ELSE 'F' END AS Dance,
CASE WHEN Swimming =1 THEN 'T' ELSE 'F' END AS Swimming ,
FROM(
--your query here
)t
它按预期工作。谢谢!但我无法在结果集中显示ID,因为我在中用于聚合。是否也可以显示ID。它按预期工作。谢谢!但我无法在结果集中显示ID,因为我在中用于聚合。是否也可以显示ID。
SELECT
Name,
CASE Reading WHEN 1 THEN 'T' ELSE 'F' END AS Reading,
CASE Sports WHEN 1 THEN 'T' ELSE 'F' END AS Sports,
CASE Dance WHEN 1 THEN 'T' ELSE 'F' END AS Dance,
CASE Swimming WHEN 1 THEN 'T' ELSE 'F' END AS Swimming
FROM
(
SELECT * FROM @tblTest
)SRC
PIVOT
(
COUNT([ID])
FOR [Hobbies] in ([Reading],[Sports],[Dance],[Swimming])
) piv;
SELECT case when Reading >0 then 'T' else 'F' end Reading ,
case when Sports >0 then 'T' else 'F' end Sports ,
case when Dance >0 then 'T' else 'F' end Dance
FROM
(
SELECT * FROM #Temp
)SRC
PIVOT
(
COUNT([ID])
FOR [Hobbies] in ([Reading],[Sports],[Dance],[Swimming])
) piv;