Question

我使用此查询将行转换为列

select 
    LAST_MOD_BY,
    (select count(*) 
     from tblALRT 
     where LAST_MOD_BY = 'USER2') 'Total Cases Worked',
    (case when STATUS_TYPE = 'Pending' then count(*) end) 'Pending' ,
    (case when STATUS_TYPE = 'Reassign' then count(*) end) 'Reassign'',
    (case when STATUS_TYPE = 'Lost' then count(*) end) 'Lost'
from 
    tblALRT 
where 
    LAST_MOD_BY = 'USER2' 
group by  
    STATUS_TYPE, LAST_MOD_BY

结果是：

query result

我想要以下结果

required result

请帮忙。

由于

Answer 1

我认为只需重新调整GROUP BY子句的顺序就可以修复代码，使其按预期工作：

select LAST_MOD_BY,(select count(*) from tblALRT where 
LAST_MOD_BY='USER2'
)'Total Cases Worked',
  (case when STATUS_TYPE = 'Pending' then count(*) end) 'Pending' ,
  (case when STATUS_TYPE = 'Reassign' then count(*) end) 'Reassign',
  (case when STATUS_TYPE = 'Lost' then count(*) end) 'Lost'
  from tblALRT 
where LAST_MOD_BY='USER2' 
group by LAST_MOD_BY, STATUS_TYPE;

这是因为LAST_MOD_BY（用户）列实际上就是您要分组的内容。我没有测试过这个，所以如果仍然不能在下面评论，我会自己测试一下。

希望它有所帮助！

Answer 2

除了使用案例，您还可以使用子查询，例如：

SELECT LAST_MOD_BY,
    COUNT(*) AS ‘Total Cases Worked’,
    (SELECT COUNT(*) FROM tblALRT WHERE LAST_MOD_BY = ‘USER2’ AND STATUS_TYPE = ‘Pending’) AS ‘Pending’,
    (SELECT COUNT(*) FROM tblALRT WHERE LAST_MOD_BY = ‘USER2’ AND STATUS_TYPE = ‘Reassign’) AS ‘Reassign’,
    (SELECT COUNT(*) FROM tblALRT WHERE LAST_MOD_BY = ‘USER2’ AND STATUS_TYPE = ‘Lost’) AS ‘Lost’,
FROM tblALRT
WHERE LAST_MOD_BY = ‘USER2’

SQLl查询将行转换为列并为每个记录获取单行

2 个答案: