delete与注入逻辑

即使百般不顺仍期望万事顺意

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Delete基本使用

1）删除指定的用户
DELETE FROM users where uname=‘hxt’;
2) 删除所有记录
DELETE FROM USERS ;

DELETE关联删除

３）关联删除
DELETE　a.b　FROM emp　ａ.dept b where a.deptno=b.deptno and a.detpno=1

注入删除

注入删除
DELETE　FROM　users　where　uname=‘hxf’;
DELETE FROM users where uname=’ ’ or ‘1’=‘1’;