三表联合查询sql语句
@爱新觉罗轰3456：求三表联合查询的SQL查询语句 -
蔚保19177536205…… 车讯语句:select username,psw from (a1 left join a2 on a1.a1_id=a2.a1_id) left join a3 on a1.a1_id=a3.a1_id 这样写: SELECT S.SName AS 姓名, CS.CourseName AS 课程, C.Score AS 成绩 FROM Students AS S INNER JOIN Score AS C ...
@爱新觉罗轰3456：求三表联合查询的SQL查询语句
蔚保19177536205…… select a.id,a.name,b.name,c.name,a.table2_id,a.table3_id,c.table2_id from table1 a,table2 b,table3 c where a.table2_id=b.id and a.table3_id=c.id and b.id=c.table2_id order by a.id; 以上语句在Oracle11g r2上测试通过,同样可以用于其他数据库,如有疑问请留言
@爱新觉罗轰3456：sqlserver三表联查sql语句 -
蔚保19177536205…… 假设学生表叫student,课程表叫class,选课表叫choose1.三层嵌套的问题 select student.name from student where student.id IN (select choose.sid from choose where choose.cid NOT IN (select class.id from class where class.teacher='李明'))2....
@爱新觉罗轰3456：求sql语句多表(三表以上)联合查询 -
蔚保19177536205…… select t_cp.id, t_cp.proc, t_odid_cpid.num from t_odid_cpid left join t_cp on t_cp.id = t_odid_cpid.cpid left join T_ORDER on t_odid_cpid.odid = T_ORDER.odid
@爱新觉罗轰3456：SQL 三表联查 -
蔚保19177536205…… select t.*,t1.hsdwmc , from a t join b t1 on t1.hsdwmc =t.thsdwmc join c t2 on t.fzmc = t2.fzmc 我上面这样写的需要所有表都有关联才行,如果不是所有表有关联换下面这种写法 select t.*,t1.hsdwmc , t2.fzmc from a t left join b t1 on t1.hsdwmc =t.thsdwmc left join c t2 on t.fzmc = t2.fzmc
@爱新觉罗轰3456：请教一个 SQL 语句,三表联查 -
蔚保19177536205…… 上面说法都不对,我觉得楼主是想要这样的结果:abc三个学生,123三个社团,应该得出的结果应该是9条记录,是abc三个学生分别针对123三个社团有没有参加,就算没有参加也要列出来.如果用上面的写法,没有参加任何一个社团的学生只...
@爱新觉罗轰3456：SQL语句三表连查,急求答案啊.看我详细提问. -
蔚保19177536205…… select E.id,E.name,E.gender,E.birthday,sum(S.salary),D.deptname from Employee E inner join Salaryrecord S on E.id=S.id and S.sdate>CONVERT(Date,'2012') and S.sdate<CONVERT(Date,'2013') inner join Department D on E.deptid=D.deptid...
@爱新觉罗轰3456：SQL 三表联合查询,查询一个表的和
蔚保19177536205…… 每个分类的答题记录的和 (使用的是子查询,当然也可以用联接查询),正确数记录的和你zhidao应该知道怎么弄了吧 select sum(RID) from 题目答题情况表 where TID in ( select TID from 题目表 where DID in (select DID from 分类表 group by Dname) )
@爱新觉罗轰3456：帮我写一个三表联查的sql语句(orcale),谢谢! -
蔚保19177536205…… 根据你的大概意思.如下 SELECT e,c,SUM(m),SUM(n) FROM A,B,C WHERE [条件c,d,e](这里你按实际情况写) AND c.A=c.B AND a.C=c.C 希望能提供更完全的题目.
@爱新觉罗轰3456：三表查询,求SQl语句 -
蔚保19177536205…… select a.id,a.data,t.data2,t.data3 from a left join(select cc.a_id,bb.data data2,cc.data data3 from (select a_id,data,rank() over (partition by a_id order by data) rn from C) cc full join (select a_id,data,rank() over (partition by a_id order by data) rn from B...
蔚保19177536205…… 车讯语句:select username,psw from (a1 left join a2 on a1.a1_id=a2.a1_id) left join a3 on a1.a1_id=a3.a1_id 这样写: SELECT S.SName AS 姓名, CS.CourseName AS 课程, C.Score AS 成绩 FROM Students AS S INNER JOIN Score AS C ...
@爱新觉罗轰3456：求三表联合查询的SQL查询语句
蔚保19177536205…… select a.id,a.name,b.name,c.name,a.table2_id,a.table3_id,c.table2_id from table1 a,table2 b,table3 c where a.table2_id=b.id and a.table3_id=c.id and b.id=c.table2_id order by a.id; 以上语句在Oracle11g r2上测试通过,同样可以用于其他数据库,如有疑问请留言
@爱新觉罗轰3456：sqlserver三表联查sql语句 -
蔚保19177536205…… 假设学生表叫student,课程表叫class,选课表叫choose1.三层嵌套的问题 select student.name from student where student.id IN (select choose.sid from choose where choose.cid NOT IN (select class.id from class where class.teacher='李明'))2....
@爱新觉罗轰3456：求sql语句多表(三表以上)联合查询 -
蔚保19177536205…… select t_cp.id, t_cp.proc, t_odid_cpid.num from t_odid_cpid left join t_cp on t_cp.id = t_odid_cpid.cpid left join T_ORDER on t_odid_cpid.odid = T_ORDER.odid
@爱新觉罗轰3456：SQL 三表联查 -
蔚保19177536205…… select t.*,t1.hsdwmc , from a t join b t1 on t1.hsdwmc =t.thsdwmc join c t2 on t.fzmc = t2.fzmc 我上面这样写的需要所有表都有关联才行,如果不是所有表有关联换下面这种写法 select t.*,t1.hsdwmc , t2.fzmc from a t left join b t1 on t1.hsdwmc =t.thsdwmc left join c t2 on t.fzmc = t2.fzmc
@爱新觉罗轰3456：请教一个 SQL 语句,三表联查 -
蔚保19177536205…… 上面说法都不对,我觉得楼主是想要这样的结果:abc三个学生,123三个社团,应该得出的结果应该是9条记录,是abc三个学生分别针对123三个社团有没有参加,就算没有参加也要列出来.如果用上面的写法,没有参加任何一个社团的学生只...
@爱新觉罗轰3456：SQL语句三表连查,急求答案啊.看我详细提问. -
蔚保19177536205…… select E.id,E.name,E.gender,E.birthday,sum(S.salary),D.deptname from Employee E inner join Salaryrecord S on E.id=S.id and S.sdate>CONVERT(Date,'2012') and S.sdate<CONVERT(Date,'2013') inner join Department D on E.deptid=D.deptid...
@爱新觉罗轰3456：SQL 三表联合查询,查询一个表的和
蔚保19177536205…… 每个分类的答题记录的和 (使用的是子查询,当然也可以用联接查询),正确数记录的和你zhidao应该知道怎么弄了吧 select sum(RID) from 题目答题情况表 where TID in ( select TID from 题目表 where DID in (select DID from 分类表 group by Dname) )
@爱新觉罗轰3456：帮我写一个三表联查的sql语句(orcale),谢谢! -
蔚保19177536205…… 根据你的大概意思.如下 SELECT e,c,SUM(m),SUM(n) FROM A,B,C WHERE [条件c,d,e](这里你按实际情况写) AND c.A=c.B AND a.C=c.C 希望能提供更完全的题目.
@爱新觉罗轰3456：三表查询,求SQl语句 -
蔚保19177536205…… select a.id,a.data,t.data2,t.data3 from a left join(select cc.a_id,bb.data data2,cc.data data3 from (select a_id,data,rank() over (partition by a_id order by data) rn from C) cc full join (select a_id,data,rank() over (partition by a_id order by data) rn from B...
