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47 lines
1.8 KiB
47 lines
1.8 KiB
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
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<mapper namespace="com.example.demo.mapper.coin.MarketMapper">
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<select id="getMarket" resultType="com.example.demo.domain.entity.Market">
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select * from market
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</select>
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<!-- 根据名称列表查询对应的市场ID及其子市场ID -->
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<select id="getMarketIds" parameterType="java.util.List" resultType="java.lang.String">
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SELECT id
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FROM market
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WHERE
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-- 匹配名称的市场ID
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name IN
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<foreach collection="list" item="name" open="(" separator="," close=")">
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#{name}
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</foreach>
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OR
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-- 父ID是上述市场ID的子市场
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parent_id IN (
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SELECT id
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FROM market
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WHERE name IN
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<foreach collection="list" item="name" open="(" separator="," close=")">
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#{name}
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</foreach>
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)
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</select>
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<select id="getMarketId" resultType="java.lang.String">
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select id from market where name=#{market}
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</select>
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<select id="getMarketIdDao" resultType="com.example.demo.domain.entity.Market">
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select * from markets where name=#{country}
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</select>
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<select id="getMarketIdBytype" resultType="com.example.demo.domain.entity.Market">
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select * from market where parent_id=#{parentId}
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</select>
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<select id="getMarketById" resultType="java.lang.String">
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select name from market where id=#{market}
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</select>
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<select id="getMarketByIds" resultType="com.example.demo.domain.entity.Market">
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select id,name from market where id in
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<foreach collection="marketIds" item="marketId" open="(" separator="," close=")">
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#{marketId}
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</foreach>
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</select>
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</mapper>
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