SQL语句建立视图,涉及到两个表

发布网友发布时间：2023-07-09 05:29

共2个回答

热心网友时间：2024-12-14 09:08

create view V_member as
select * from (select
a.memberid,a.membername,a.vocation,a.initpoint,a.addpoint,a.adj,a.remark,
--第一列
b.dkp,
--第二列
(a.initpoint+a.addpoint+a.adj-b.dkp)as dkp2 from member a
left join
--计算第二张表的相同名称人员的dkp总和
(select membername,sum(dkp)as dkp from expense group by membername) b on a.menbername=b.membername)tbl

热心网友时间：2024-12-14 09:08

create view vw_member
as
select a.memberid,a.membername,a.vocation,a.initpoint,a.addpoint,a.adj,a.remark,b.dkp, (a.initpoint+a.addpoint+a.adj-b.dkp)as dkp2 from member a
left join (select membername,sum(dkp)as dkp from expense group by membername)as b
on a.menbername=b.membername

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