sql三个表查询
@尤恒5211：如何用一条SQL语句查询3个表中的内容? -
国浦15319928917…… 前提是表的结构应该是一样的或者处理成一样的~~~~ 表A, aid, aname, atext 表B, bid, bname, btext 表C, cid, cname, ctext SELECT * FROM ( SELECT aid AS id, aname AS name, atext AS [text] FROM A UNION SELECT bid AS id, bname AS ...
@尤恒5211：求三表联合查询的SQL查询语句 -
国浦15319928917…… 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 ...
@尤恒5211：3个表的SQL查询 -
国浦15319928917…… select * from t1 where t_id not in (select user_id from t3 where lesson_id=(select t_id from t2 where 课程名='课程名')) 5个5个的显示出是不是就显示5个 select top 5 * from t1 where t_id not in (select user_id from t3 where lesson_id=(select t_id from t2 where 课程名='课程名'))
@尤恒5211：sql server三张表之间的查询 -
国浦15319928917…… select * from B right join A on B.userid=A.userid right join C on B.eqid=C.eqid 这个是以B表中的数据主主导,显示结果为所有的B表数据,对应的其他表的数据,如果有就显示,没有就显示为NLL
@尤恒5211：怎么用一句sql查询三个表并输出三个表的内容 -
国浦15319928917…… 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^_^
@尤恒5211：三表查询,求SQl语句 -
国浦15319928917…… 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...
@尤恒5211：SQL 三表联查 -
国浦15319928917…… 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
@尤恒5211：sql 三表连接查询 -
国浦15319928917…… select student.stuno(学号),stuname(姓名),book.bookno(书号),count(amount),sum(price)as 应付 FROM student,book,bookorder where student.stuno=bookorder.stuno,book.bookno=bookorder.bookno group by stuno(学号) go
@尤恒5211：sql 查询三个表里的内容,请教大侠! -
国浦15319928917…… select M.USERNAME,M.id,M.time from table1 M left join ( select A.username as username,A.address as address from table2 A union select B.username as username,B.address as address from table3 B) C on(M.username=C.username) where C....
@尤恒5211：sql 语句操作三个表 -
国浦15319928917…… 很简单的,三个表关联下再sum、group下就可以了.表及其表中字段命名如下:销售单表(XSJL) 商品编码(SPCODE) 金额(XSJE) 时间(XSSJ) 仓位号(CWH) 商品表(SP) 商品编码(SPCODE) 厂商编码(CSCODE) 厂商表(CSB) 厂商编码(CSCODE) 厂商名称(CSNAME) 查询语句:select C.CSCODE,C.CSNAME,SUM(A.XSJE) from XSJL A ,SP B ,CSB C WHERE A.SPCODE=B.SPCODE AND B.CSCODE=C.CSCODE GROUP BY C.CSCODE,C.CSNAME
国浦15319928917…… 前提是表的结构应该是一样的或者处理成一样的~~~~ 表A, aid, aname, atext 表B, bid, bname, btext 表C, cid, cname, ctext SELECT * FROM ( SELECT aid AS id, aname AS name, atext AS [text] FROM A UNION SELECT bid AS id, bname AS ...
@尤恒5211：求三表联合查询的SQL查询语句 -
国浦15319928917…… 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 ...
@尤恒5211：3个表的SQL查询 -
国浦15319928917…… select * from t1 where t_id not in (select user_id from t3 where lesson_id=(select t_id from t2 where 课程名='课程名')) 5个5个的显示出是不是就显示5个 select top 5 * from t1 where t_id not in (select user_id from t3 where lesson_id=(select t_id from t2 where 课程名='课程名'))
@尤恒5211：sql server三张表之间的查询 -
国浦15319928917…… select * from B right join A on B.userid=A.userid right join C on B.eqid=C.eqid 这个是以B表中的数据主主导,显示结果为所有的B表数据,对应的其他表的数据,如果有就显示,没有就显示为NLL
@尤恒5211：怎么用一句sql查询三个表并输出三个表的内容 -
国浦15319928917…… 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^_^
@尤恒5211：三表查询,求SQl语句 -
国浦15319928917…… 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...
@尤恒5211：SQL 三表联查 -
国浦15319928917…… 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
@尤恒5211：sql 三表连接查询 -
国浦15319928917…… select student.stuno(学号),stuname(姓名),book.bookno(书号),count(amount),sum(price)as 应付 FROM student,book,bookorder where student.stuno=bookorder.stuno,book.bookno=bookorder.bookno group by stuno(学号) go
@尤恒5211：sql 查询三个表里的内容,请教大侠! -
国浦15319928917…… select M.USERNAME,M.id,M.time from table1 M left join ( select A.username as username,A.address as address from table2 A union select B.username as username,B.address as address from table3 B) C on(M.username=C.username) where C....
@尤恒5211：sql 语句操作三个表 -
国浦15319928917…… 很简单的,三个表关联下再sum、group下就可以了.表及其表中字段命名如下:销售单表(XSJL) 商品编码(SPCODE) 金额(XSJE) 时间(XSSJ) 仓位号(CWH) 商品表(SP) 商品编码(SPCODE) 厂商编码(CSCODE) 厂商表(CSB) 厂商编码(CSCODE) 厂商名称(CSNAME) 查询语句:select C.CSCODE,C.CSNAME,SUM(A.XSJE) from XSJL A ,SP B ,CSB C WHERE A.SPCODE=B.SPCODE AND B.CSCODE=C.CSCODE GROUP BY C.CSCODE,C.CSNAME
