上传源代码版本

customer_order_analysis.sql

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+-- 以客户维度展示客户的每日下单量以及每周的下单量（每周日到周六）
+SELECT
+    c.Id AS CustomerId,
+    c.CustomerCode,
+    c.CustomerName,
+    -- 每日下单量
+    DATE(lrr.CreatedAt) AS OrderDate,
+    COUNT(*) AS DailyOrderCount,
+    -- 每周下单量（按周日到周六计算）
+    CONCAT(YEARWEEK(lrr.CreatedAt, 0), '周') AS WeekNumber,
+    COUNT(*) OVER (PARTITION BY c.Id, YEARWEEK(lrr.CreatedAt, 0)) AS WeeklyOrderCount
+FROM
+    customers c
+JOIN
+    label_replace_requests lrr ON c.Id = lrr.CustomerId
+WHERE
+    lrr.ReplaceStatus = 'Y' -- 只统计有效订单
+GROUP BY
+    c.Id,
+    c.CustomerCode,
+    c.CustomerName,
+    DATE(lrr.CreatedAt),
+    YEARWEEK(lrr.CreatedAt, 0)
+ORDER BY
+    c.CustomerName,
+    OrderDate;
+
+-- 另一种形式：分别展示每日和每周汇总（每周日到周六）
+SELECT
+    c.Id AS CustomerId,
+    c.CustomerCode,
+    c.CustomerName,
+    'Daily' AS PeriodType,
+    DATE(lrr.CreatedAt) AS Period,
+    COUNT(*) AS OrderCount
+FROM
+    customers c
+JOIN
+    label_replace_requests lrr ON c.Id = lrr.CustomerId
+WHERE
+    lrr.ReplaceStatus = 'Y'
+GROUP BY
+    c.Id,
+    c.CustomerCode,
+    c.CustomerName,
+    DATE(lrr.CreatedAt)
+UNION ALL
+SELECT
+    c.Id AS CustomerId,
+    c.CustomerCode,
+    c.CustomerName,
+    'Weekly' AS PeriodType,
+    CONCAT(YEARWEEK(lrr.CreatedAt, 0), '周') AS Period,
+    COUNT(*) AS OrderCount
+FROM
+    customers c
+JOIN
+    label_replace_requests lrr ON c.Id = lrr.CustomerId
+WHERE
+    lrr.ReplaceStatus = 'Y'
+GROUP BY
+    c.Id,
+    c.CustomerCode,
+    c.CustomerName,
+    YEARWEEK(lrr.CreatedAt, 0)
+ORDER BY
+    CustomerName,
+    PeriodType,
+    Period;