Mybatis中模糊查询的各种写法

http://blog.sina.com.cn/s/blog_667bef380101f2da.html

1.sql中字符串拼接

   SELECT *FROM tableName WHERE name LIKE CONCAT(CONCAT('%', #{text}),'%');

 

2. 使用 ${...} 代替#{...}

   SELECT *FROM tableName WHERE name LIKE '%${text}%';

 

3.程序中拼接

  Java

   // StringsearchText = "%" + text + "%";

   StringsearchText = newStringBuilder("%").append(text).append("%").toString();

  parameterMap.put("text", searchText);

 

  SqlMap.xml

   SELECT *FROM tableName WHERE name LIKE #{text};

 

4.大小写匹配查询

   SELECT*  FROM TABLENAME  WHEREUPPER(SUBSYSTEM) LIKE '%' || UPPER('jz') || '%'

  或者 

   SELECT*   FROMTABLENAME  WHERE LOWER(SUBSYSTEM) LIKE '%' ||LOWER('jz') || '%'