三个表联合查询sql语句
@杭货5189：求三表联合查询的SQL查询语句 -
里枫19847026673…… 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 ...
@杭货5189：求三表联合查询的SQL查询语句
里枫19847026673…… 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
@杭货5189：SQL 三表联查 -
里枫19847026673…… 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
@杭货5189：sql 三表联合查询 -
里枫19847026673…… select a.incode,a.inname,count(c.stzt) as stzt from industry_infor as a left jion workType_infor as b on a.incode=b.incode left jion exam_lltk_infor as c on b.workTypeCode = c.workTypeCode group by a.incode,a.inname
@杭货5189：怎么用一句sql查询三个表并输出三个表的内容 -
里枫19847026673…… select table1.id,table1.title,table1.content ,table1.s_time from table1 union select table2.id , table2.title_a , table2.content ,table2.time from table2 union select table3.id , table3.title , table3.content ,table3.time from table3 order by s_time 肯定正确啦^_^
@杭货5189：三张表联合查询的SQL语句并计算各表一列的总和怎么写? -
里枫19847026673…… select A .name ,B.name,C.name from A inner join B on(A.yid=B.Yid) inner join (B.yid=C.Yid) where (你的条件...)
@杭货5189：SQL数据库同时查询三个关联表,把这三个表内容按条件顺序显示出来SQL怎么写? -
里枫19847026673…… 比如有三张表 dept部门表(dept_id,dept_name)、 emp_info(emp_id,emp_name,dept_id,role_id)用户信息表、 emp_role(role_id,role_name)管理表 dept部门表的dept_id等于emp_info用户信息表dept_id, 而emp_role管理表的role_id等于emp...
@杭货5189：三表查询,求SQl语句 -
里枫19847026673…… 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...
@杭货5189：帮我写一个三表联查的sql语句(orcale),谢谢! -
里枫19847026673…… 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.
@杭货5189：SQL语句三表连查,急求答案啊.看我详细提问. -
里枫19847026673…… 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...
里枫19847026673…… 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 ...
@杭货5189：求三表联合查询的SQL查询语句
里枫19847026673…… 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
@杭货5189：SQL 三表联查 -
里枫19847026673…… 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
@杭货5189：sql 三表联合查询 -
里枫19847026673…… select a.incode,a.inname,count(c.stzt) as stzt from industry_infor as a left jion workType_infor as b on a.incode=b.incode left jion exam_lltk_infor as c on b.workTypeCode = c.workTypeCode group by a.incode,a.inname
@杭货5189：怎么用一句sql查询三个表并输出三个表的内容 -
里枫19847026673…… select table1.id,table1.title,table1.content ,table1.s_time from table1 union select table2.id , table2.title_a , table2.content ,table2.time from table2 union select table3.id , table3.title , table3.content ,table3.time from table3 order by s_time 肯定正确啦^_^
@杭货5189：三张表联合查询的SQL语句并计算各表一列的总和怎么写? -
里枫19847026673…… select A .name ,B.name,C.name from A inner join B on(A.yid=B.Yid) inner join (B.yid=C.Yid) where (你的条件...)
@杭货5189：SQL数据库同时查询三个关联表,把这三个表内容按条件顺序显示出来SQL怎么写? -
里枫19847026673…… 比如有三张表 dept部门表(dept_id,dept_name)、 emp_info(emp_id,emp_name,dept_id,role_id)用户信息表、 emp_role(role_id,role_name)管理表 dept部门表的dept_id等于emp_info用户信息表dept_id, 而emp_role管理表的role_id等于emp...
@杭货5189：三表查询,求SQl语句 -
里枫19847026673…… 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...
@杭货5189：帮我写一个三表联查的sql语句(orcale),谢谢! -
里枫19847026673…… 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.
@杭货5189：SQL语句三表连查,急求答案啊.看我详细提问. -
里枫19847026673…… 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...
