MySQL5.6到8.0的账号迁移

      
      

       
       SELECT CONCAT(
       
       'create user "',USER,
       
       '"@"',HOST,
       
       '";' )  
       
       
FROM mysql.user 
       
       
where user 
       
       
not 
       
       in (
       
       'root',
       
       'mysql.infoschema',
       
       'mysql.session',
       
       'mysql.sys') 
       
       
;
      
      
      
      

       
       
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       # 只提取出grant sql，过滤掉创建账号的语句
       
       
pt-show-grants 
       
       -uroot 
       
       -p
       
       'xxxxx'  | egrep 
       
       -v 
       
       'IDENTIFIED BY PASSWORD' | egrep 
       
       -v 
       
       '-- Grants' > grants.sql
      
      
      
      

       
       
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       select concat(
       
       'update mysql.user set authentication_string="', password,
       
       '" ',
       
       'where user=',
       
       "'",user,
       
       "' and host=",
       
       "'",host,
       
       "'",
       
       ';' )  
       
       
from mysql.user 
       
       
where user 
       
       
not 
       
       in (
       
       'root',
       
       'mysql.infoschema',
       
       'mysql.session',
       
       'mysql.sys') 
       
       
;
      
      
      
      

       
       
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       将上面几步获取到的结果，在8.x的MySQL上执行，注意最后要 flush privileges; 下，因为我们是直接改用户表的！
       
       

      
      
      
      

       
       
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