mysql基础 substring 字符串截取 ,SUBSTRING_INDEX

 

https://www.cnblogs.com/zdz8207/p/3765073.html

 

取倒数 第二个 逗号 后面的 

SELECT SUBSTRING_INDEX('Guangzhou,Guangzhou,Guangdong,China,CNGUA,China',',',-2) 

结果 : CNGUA,China

 

 

截取 

SELECT substring(

　　replace('Guangzhou,Guangzhou,Guangdong,China,CNGUA,China',SUBSTRING_INDEX('Guangzhou,Guangzhou,Guangdong,China,CNGUA,China',',',-2),''),

1,

length(replace('Guangzhou,Guangzhou,Guangdong,China,CNGUA,China',SUBSTRING_INDEX('Guangzhou,Guangzhou,Guangdong,China,CNGUA,China',',',-2),''))-1)

结果:

Guangzhou,Guangzhou,Guangdong,China

 

posted @ 2019-06-28 01:28  AngDH  阅读(239)  评论(0)  编辑  收藏  举报