sql模糊查询详解

  

   --查出包含 has字符的  %'[include]'%
  SELECT  ddd.department_name, ddd.department_id  FROM departments  ddd WHERE  ddd.department_name like '%has%'

  --查出匹配位置的 从第一个字符串开始
 
SELECT  ddd.department_name, ddd.department_id  FROM departments  ddd WHERE  ddd.department_name like 'has%' 


--查出匹配位置的  从第二个字符串开始

SELECT  ddd.department_name, ddd.department_id  FROM departments  ddd WHERE  ddd.department_name like '_has%'