数据库增删改查
1.插入数据 INSERT INTO phpyun_member(username,password,email,salt) VALUES ('','c33d068cf260dc210cfca27ce1ffdccf','','a3206c'); 2.插入数据不重复 INSERT INTO phpyun_member(username,email) SELECT '45611','3135' FROM DUAL WHERE NOT EXISTS(SELECT username FROM phpyun_member where username = '45612'); 3.修改数据 update phpyun_member set username="123" where uid="1"; 4.查询数据 select * from phpyun_member; 5.删除数据 delete from phpyun_member where uname= '123';
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