#mysql 下载MySQL :: Download MySQL Community Server (Archived Versions) https://downloads.mysql.com/archives/community/ 选择 5.7.* 版本,然后选择 zip 文件进行下载 解压将下载的文件解...
#mysql #sql 下列Sql可用in,建议用existsSELECT * FROM coldknow a WHERE EXISTS ( SELECT title, img FROM coldknow GROUP&n...