mybatis中的模糊查詢

<!-- oracle 注意concat括號的書寫位置-->

<select id="searchUserBySearchName" parameterType="java.lang.String" resultType="com.urm.entity.User"> select * from t_user where user_name like CONCAT(CONCAT('%',#{search_name}),'%') </select> <!-- 或者 --> <select id="searchUserBySearchName" parameterType="java.lang.String" resultType="com.urm.entity.User"> select * from t_user where user_name like '%'||#{search_name}||'%' </select>

<!-- mysql -->

<select id="searchUserBySearchName" parameterType="java.lang.String" resultType="com.urm.entity.User"> select * from t_user where user_name like CONCAT('%',#{search_name},'%') </select>

<!-- ****分割線以上代碼,都是我親測確保無誤的,分割線如下代碼複製於原連接******** -->

<!-- sql server -->

<select id="searchUserBySearchName" parameterType="java.lang.String" resultType="com.urm.entity.User"> select * from t_user where user_name like '%'+#{search_name}+'%' </select>

<!-- db2 -->

<select id="searchUserBySearchName" parameterType="java.lang.String" resultType="com.urm.entity.User"> select * from t_user where user_name like CONCAT('%',#{search_name},'%') </select>

<!-- 或者 -->

<select id="searchUserBySearchName" parameterType="java.lang.String" resultType="com.urm.entity.User"> select * from t_user where user_name like '%'||#{search_name}||'%' </select>

本身用的是sql server，可使用