ruoyi-vue-pro/yudao-module-mall/yudao-module-promotion-biz/src/main/resources/mapper/coupon/CouponTemplateMapper.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="cn.iocoder.yudao.module.promotion.dal.mysql.coupon.CouponTemplateMapper">

    <update id="updateTakeCount">
        UPDATE promotion_coupon_template
        SET take_count = take_count + #{incrCount}
        WHERE id = #{id}
    </update>

</mapper>