用于查找具有两个's'字符的行的SQL查询

Question

如何编写一个sql查询，该查询将返回表中的行（名为'emp'），其中字段'job'在数据中的某处有两个''字符。

Answer 1

试试这个

SELECT * FROM your_Table
WHERE (LENGTH(Field) - LENGTH(REPLACE(Field, 's', '')) = 2

Answer 2

select  *
from    emp
where   job like '%s%s%'

Answer 3

select  job
from    emp
where   job like '%s%s%'

Answer 4

select  jobs
from    emp
where   job like '%s%s%'

Answer 5

SELECT * 
  FROM emp
 WHERE job LIKE '%s%s%'
EXCEPT
SELECT * 
  FROM emp
 WHERE job LIKE '%s%s%s%';