Mysql數據庫左外連接，右外連接，模糊查詢

內連接，左外連接，右外連接都是數據庫的常用連接與使用手段

內連接 select * from assets_car c inner join category c on a.id = c.id;

左外連接 select * from assets_car c left join category c on a.id = c.id;

右外連接 select * from assets_car c right join category c on a.id=c.id;

 模糊查詢  select * from sysuser where nickName like '%統管理%';