Mysql将数据库中重复的数据全部显示出来 select a.id,a.name from survey a join (
select name,count(name) from survey
group by name having count(name)>1
) b on a.name=b.name
where a.type is nu...
mysqldump 备份报 Warning: A partial dump from a server that has GTIDs will by default include the 备份mysql 报警告如下: Warning: A partial dump from a server that has GTIDs will by default ...
mysql的配置文件my.cnf参考参数 [mysqld] # # Remove leading # and set to the amount of RAM for the most important data # cache in MySQL. Start at 70% of total RAM for dedicated server, else...