1、创建三张测试表,
create table pw_memberinfo(uid int, name varchar(20))
create table pw_members(companyid int, uid int)
create table pw_memberdata(uid int, deposit int, ddeposit int, money int)
2、三张表,分别插入测试数据,
insert into pw_members values(1, 1)
insert into pw_members values(1, 2)
insert into pw_members values(1, 3)
insert into pw_memberinfo values(1, 'name_1')
insert into pw_memberinfo values(2, 'name_2')
insert into pw_memberinfo values(3, 'name_3')
insert into pw_memberdata values(1,30,50,150)
insert into pw_memberdata values(2,77,50,12)
insert into pw_memberdata values(3,44,50,82)
3、查看pw_memberdata表中的记录,select * from pw_memberdata t,
4、编写sql语句,
select * from (SELECT i.uid, sum(deposit+ddeposit+money) as allmoney
FROM pw_memberinfo i
LEFT JOIN pw_members m ON m.uid=i.uid
LEFT JOIN pw_memberdata d ON i.uid=d.uid
group by i.uid
) t where allmoney>200
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