Mysql数据库左外连接,右外连接,模糊查询
内连接,左外连接,右外连接都是数据库的常用连接与使用手段
内连接 select * from assets_car c inner join category c on a.id = c.id;
左外连接 select * from assets_car c left join category c on a.id = c.id;
右外连接 select * from assets_car c right join category c on a.id=c.id;
模糊查询 select * from sysuser where nickName like '%统管理%';
你来是缘分,你走也是