摘要: 一、基本的用法 select count(distinct *) from member_info where uid is null ; select count(*) from users where locate('|',uuid) > 0. # LOCATE(substring, strin 阅读全文
posted @ 2025-02-20 15:00 尘恍若梦 阅读(10) 评论(0) 推荐(0)