<!-- oracle -->
<select id="searchUserBySearchName" parameterType="java.lang.String" resultType="com.urm.entity.User">
select * from t_user where user_name like CONCAT('%',#{search_name})
</select> // concat 函数在oracle里面只能连接两个字符串。
<!-- 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>
<!-- 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>
excel java 合并后 java合并多个excel
合并单元格语法： 开始行、结束行、开始列、结束列
对应代码：new CellRangeAddress(startRowIndex, rowIndex - 1, i, i);
合并代码：sxssfSheet.addMergedRegion(cellRangeAddress);
