在调用微信code换openid的接口curl报错curl Received HTTP code 403 from proxy after CONNECT,错误码56。可以看到是curl的代理有问题。然后我自己电脑设置代理去访问curl请求的地址,的确也返回了403,说明代理不允许访问这个地址,联系运维添加了就好了
今天在项目中需要清理某个表的垃圾数据,通过delete from table where field in(子查询)失败,特来研究下删除下in和not in的问题(1).普通in/not in正确DELETE FROM member_extend WHERE uid IN ( 4, 5 )
DELETE FROM member_extend WHERE