12 lines
428 B
XML
12 lines
428 B
XML
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<?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.sky.mapper.SetmealMapper">
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<!-- 根据分类id查询套餐的数量 -->
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<select id="countByCategoryId" resultType="java.lang.Integer">
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select count(id)
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from setmeal
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where category_id = #{categoryId}
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</select>
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</mapper>
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