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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.ruili.wcp.dao.config.PermissionMapper">
    <!-- 根据parentId获取最大排序号-->
    <select id="selectMaxSortNum" parameterType="Long" resultType="int">
        select ifnull(max(sort_num), 0) sortNum
        FROM cnf_permission
        WHERE parent_id = #{parentId}
    </select>
 
    <!-- 根据parentId获取最大排序号-->
    <select id="selectMaxSortNum" parameterType="Long" resultType="int" databaseId="postgresql">
        select NVL(max(sort_num), 0) sortNum
        FROM cnf_permission
        WHERE parent_id = #{parentId}
    </select>
 
    <!-- 根据parentId获取最大排序号-->
    <select id="selectMaxSortNum" parameterType="Long" resultType="int" databaseId="kingbasees">
        select NVL(max(sort_num), 0) sortNum
        FROM cnf_permission
        WHERE parent_id = #{parentId}
    </select>
 
    <!-- 根据parentId获取最大排序号-->
    <select id="selectMaxSortNum" parameterType="Long" resultType="int" databaseId="xugu">
        select NVL(max(sort_num), 0) sortNum
        FROM cnf_permission
        WHERE parent_id = #{parentId}
    </select>
 
    <!-- 根据parentId获取最大排序号-->
    <select id="selectMaxSortNum" parameterType="Long" resultType="int" databaseId="oracle">
        select NVL(max(sort_num), 0) sortNum
        FROM cnf_permission
        WHERE parent_id = #{parentId}
    </select>
 
    <!-- 根据parentId获取最大排序号-->
    <select id="selectMaxSortNum" parameterType="Long" resultType="int" databaseId="sqlServer">
        select isnull(max(sort_num), 0) sortNum
        FROM cnf_permission
        WHERE parent_id = #{parentId}
    </select>
</mapper>