gunshi-project-ss/src/main/resources/mapper/StRsvrRMapper.xml

<?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.gunshi.project.xyt.mapper.StRsvrRMapper">

    <select id="getStcdLastRsvrData" resultType="com.gunshi.project.xyt.model.StRsvrR">
        SELECT stb.stcd,
               case UPPER(stb.sttp) when 'RR' then r.tm when 'ZZ' then r2.tm end stm,
               stb.source,
               stb.sttp
        FROM public.st_stbprp_b stb
                 LEFT JOIN (SELECT *
                            FROM (SELECT *, ROW_NUMBER() OVER ( PARTITION BY stcd ORDER BY tm DESC ) AS rn FROM public.st_rsvr_r) subquery
                            WHERE subquery.rn = 1) r ON stb.stcd = r.stcd
                 LEFT JOIN (SELECT *
                            FROM (SELECT *, ROW_NUMBER() OVER ( PARTITION BY stcd ORDER BY tm DESC ) AS rn FROM public.st_river_r) subquery2
                            WHERE subquery2.rn = 1) r2 ON stb.stcd = r2.stcd
        WHERE stb.source in ('SW', 'SH')
    </select>
    <select id="getStcdFirstRsvrData" resultType="com.gunshi.project.xyt.model.StRsvrR">
        SELECT stb.stcd,
               case UPPER(stb.sttp) when 'RR' then r.tm when 'ZZ' then r2.tm end stm,
               stb.source,
               stb.sttp
        FROM public.st_stbprp_b stb
                 LEFT JOIN (SELECT *
                            FROM (SELECT *, ROW_NUMBER() OVER ( PARTITION BY stcd ORDER BY tm ASC ) AS rn FROM public.st_rsvr_r) subquery
                            WHERE subquery.rn = 1) r ON stb.stcd = r.stcd
                 LEFT JOIN (SELECT *
                            FROM (SELECT *, ROW_NUMBER() OVER ( PARTITION BY stcd ORDER BY tm ASC ) AS rn FROM public.st_river_r) subquery2
                            WHERE subquery2.rn = 1) r2 ON stb.stcd = r2.stcd
        WHERE stb.source in ('SW', 'SH')
    </select>
</mapper>