package cn.exrick.xboot.your.mapper;
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import cn.exrick.xboot.your.vo.Month;
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import com.baomidou.mybatisplus.core.mapper.BaseMapper;
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import cn.exrick.xboot.your.entity.Customer;
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import org.apache.ibatis.annotations.Param;
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import org.apache.ibatis.annotations.Select;
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/**
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* 商户表数据处理层
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* @author zhangzeli
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*/
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public interface CustomerMapper extends BaseMapper<Customer> {
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@Select("select count(id) from t_customer")
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int count();
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@Select("select \n" +
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"sum(case when month(create_time) < 2 && year(create_time) <= #{year} then 1 else 0 end) as january,\n" +
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"sum(case when month(create_time) < 3 && year(create_time) <= #{year} then 1 else 0 end) as february,\n" +
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"sum(case when month(create_time) < 4 && year(create_time) <= #{year} then 1 else 0 end) as march,\n" +
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"sum(case when month(create_time) < 5 && year(create_time) <= #{year} then 1 else 0 end) as april,\n" +
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"sum(case when month(create_time) < 6 && year(create_time) <= #{year} then 1 else 0 end) as may,\n" +
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"sum(case when month(create_time) < 7 && year(create_time) <= #{year} then 1 else 0 end) as june,\n" +
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"sum(case when month(create_time) < 8 && year(create_time) <= #{year} then 1 else 0 end) as july,\n" +
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"sum(case when month(create_time) < 9 && year(create_time) <= #{year} then 1 else 0 end) as august,\n" +
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"sum(case when month(create_time) < 10 && year(create_time) <= #{year} then 1 else 0 end) as september,\n" +
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"sum(case when month(create_time) < 11 && year(create_time) <= #{year} then 1 else 0 end) as october,\n" +
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"sum(case when month(create_time) < 12 && year(create_time) <= #{year} then 1 else 0 end) as november,\n" +
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"sum(case when month(create_time) < 13 && year(create_time) <= #{year} then 1 else 0 end) as december\n" +
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"from t_customer")
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Month getCustomerCount(@Param("year")Integer year);
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}
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