CREATE VIEW together AS
SELECT gongyi.foodname, gongyi.info, makeway.makeway,nutrition.info
FROM gongyi, makeway ,nutrition
WHERE gongyi.foodname = makeway.foodname AND gongyi.foodname=nutrition.foodname;
combine 3 tables
猜你喜欢
转载自blog.csdn.net/u014229742/article/details/82194695
今日推荐
周排行