sql奇特的语句

Posted 2020-10-28 kaiwen1

1，一个表先将01,02,03类型编码转换文字，在做统计

select CASE  IMPLEMENT_PROPETY
  WHEN ‘01‘ then ‘法定机关‘
   WHEN ‘02‘ then ‘授权组织‘
   WHEN ‘03‘ then ‘受委托组织‘
   ELSE ‘其他‘ END MMMMMM from test.pre_service

 

最终sql结果如下

SELECT temp.MMMMMM WW,COUNT(*) as Total from
 (select CASE  IMPLEMENT_PROPETY
  WHEN ‘01‘ then ‘法定机关‘
   WHEN ‘02‘ then ‘授权组织‘
   WHEN ‘03‘ then ‘受委托组织‘
   ELSE ‘其他‘ END MMMMMM
  from test.pre_service ) temp  group by temp.MMMMMM

//代码原型
select temp.type as type, count(type) as Total
from
(select case 字段 
WHEN ‘1‘ then ‘苹果‘
WHEN ‘2‘ then ‘香蕉‘
WHEN ‘3‘ then ‘西瓜‘ end as  type
from table ) temp where type is not null group by temp.type

 

 

2.

//1
 ---select IMPLEMENT_PROPETY , COUNT(*) Num from test.pre_service  GROUP BY IMPLEMENT_PROPETY


-- SELECT  dept_name ,COUNT(*) AAAA from test.pre_service_snapshot GROUP BY dept_name

-- SELECT dept_name, INFO_TYPE , COUNT(*) Num from test.pre_service_snapshot GROUP BY dept_name,INFO_TYPE

-- SELECT dept_name,SERVICE_TYPE ,COUNT(*) Num from test.pre_service_snapshot where INFO_TYPE=‘即办件‘ group by  dept_name,SERVICE_TYPE

-- select  DEPT_NAME ,COUNT(*) numBer from test.pre_service GROUP BY DEPT_NAME

--  select IMPLEMENT_PROPETY , COUNT(*) Num from test.pre_service  GROUP BY IMPLEMENT_PROPETY


-- select IMPLEMENT_PROPETY , COUNT(*) Num from test.pre_service  GROUP BY IMPLEMENT_PROPETY

-- select DATE_FORMAT(PROMISEE_TIME,‘%Y-%m‘) date ,count(projid) num ,HANDLESTATE from test.pre_apasinfo 
--  group by DATE_FORMAT(PROMISEE_TIME,‘%Y-%m‘),HANDLESTATE


-- -- select   hander_deptname , COUNT(*)  Accept_Number  FROM  test.pre_transact GROUP BY hander_deptname
-- 
-- select DATE_FORMAT(TRANSACT_TIME,‘%Y-%m‘) date ,count(projid) num ,hander_deptname from test.pre_transact 
--  group by DATE_FORMAT(TRANSACT_TIME,‘%Y-%m‘),hander_deptname

---SELECT SUM(*) from pre_serv

--  select transact_result  hander_deptname , COUNT(*)  Accept_Number ,hander_deptname FROM  test.pre_transact GROUP BY transact_result

-- select transact_result  transact_result , COUNT(*)  hander_Number  FROM  test.pre_transact GROUP BY transact_result
-- select OBJECT_NAME  name_institution , COUNT(*)  Complain_Number FROM test.pre_complain  GROUP BY OBJECT_NAME

---select   hander_deptname , COUNT(*)  Accept_Number  FROM  test.pre_transact GROUP BY hander_deptname