Question

假设我有以下表格 Person table和personStatus table。

declare @Persons table
(PersonId int)

insert into @Persons select 10   
insert into @Persons select 11    

declare @PersonStatus table
(id int,statuss int)

insert into @PersonStatus (id,statuss) values(10,0)
insert into @PersonStatus (id,statuss) values(10,0)
insert into @PersonStatus (id,statuss) values(11,1)
insert into @PersonStatus (id,statuss) values(10,0)
insert into @PersonStatus (id,statuss) values(11,0)

现在我想查找其状态的全部为零的人员ID 结果只是---＆gt; 10

怎么做？

Answer 1

SELECT  id
FROM    @PersonStatus
GROUP   BY ID
HAVING  COUNT(DISTINCT statuss) = 1 AND
        MAX(statuss) = 0

SQLFiddle Demo

OR

SELECT  id
FROM    @PersonStatus
GROUP   BY ID
HAVING  MAX(statuss) = MIN(statuss) AND
        MAX(statuss) = 0

SQLFiddle Demo

Answer 2

由于我假设@Persons表不仅仅包含PersonId列，而您可能还需要其他列，我认为@Persons需要成为查询的一部分。

SELECT p.PersonId --, other columns from p
 FROM @Persons AS p
 WHERE EXISTS (SELECT id FROM @PersonStatus
   WHERE id = p.PersonId
   GROUP BY id HAVING MAX(statuss) = 0);

Answer 3

select distinct p.id from @PersonStatus as p
where Statuss = 0
and not exists (select null from @Personstatus as t
                where p.id = t.id and t.statuss <> 0)

如何选择所有状态为零的记录？

3 个答案: