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12 lines
404 B
12 lines
404 B
2 weeks ago
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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="cc.hiver.mall.dao.mapper.MallCouponMapper">
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<update id="deductStock">
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UPDATE t_mall_coupon
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SET remain_count = remain_count - 1
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WHERE id = #{id} AND remain_count > 0 AND del_flag = 0
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</update>
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</mapper>
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