MySQL查询

Question

大家好，我正在编写一个简单的 Mysql 查询来提取一些 CSV 但 where 子句似乎不起作用任何想法都会有很大的帮助

select SUBSTRING_INDEX(email,'@',1)AS email , clear , SUBSTRING(email,LOCATE('@',email)+1) as domain where domain like 'somestring'  from sometable;

Answer 1

SELECT 
  SUBSTRING_INDEX(email,'@',1) AS email,
  clear, 
  SUBSTRING(email,LOCATE('@',email)+1) AS domain 
FROM sometable
WHERE domain LIKE '%somestring%';