mysql三表查询的方法（附图）

//创建tb_borrow与tb_reader间的视图 create view tb_viewborreader as select br.readerid,rd.name from tb_borrow as br left join tb_reader as rd on br.readerid=rd.id //创建tb_borrow,tb_bookcase与tb_bookinfo间的视图

>>阅读原文<<