02-MySQL视图
1.视图是什么?
2.定义视图
create view 视图名称 as select 语句;
例:视图名称建议以v_开头
create view v_goods_info as select g.*,c.name as cate_name,b.name as brand_name from goods as g left join goods_cates as c on g.cate_id=c.id left join goods_brands as b on g.brand_id=b.id;3.查看视图
4.使用视图
5.删除视图
7.视图demo
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