From bbe3bc715177a377852a7fd8d3e344ffe130d6a9 Mon Sep 17 00:00:00 2001
From: mba1398 <26516464+mba1398@users.noreply.github.com>
Date: Mon, 7 Apr 2025 17:26:43 +0800
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 =?UTF-8?q?=E7=BA=A7=E5=A4=84=E7=90=86.md?=
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---
 ch05_SQL高级处理.md | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/ch05_SQL高级处理.md b/ch05_SQL高级处理.md
index 140a0fa..c930460 100644
--- a/ch05_SQL高级处理.md
+++ b/ch05_SQL高级处理.md
@@ -281,16 +281,23 @@ show tables;
 - 插入数据
 ```SQL
 -- 使用 SQL 客户端进行创建
-CREATE DEFINER=`root`@`localhost` PROCEDURE `insert_product_test`()
+-- 按照不同维度来汇总每日销售数据，分别插入相应的统计表
+
+CREATE PROCEDURE `P_SALES_STATISTICS`(IN SDATE VARCHAR(20))
 BEGIN
-    declare i int;
-    set i=1;
-    while i<9 do
-        set @pcid = CONCAT('000', i);
-        PREPARE stmt FROM 'INSERT INTO product_test() SELECT * FROM shop.product where product_id= ?';
-        EXECUTE stmt USING @pcid;
-        set i=i+1;
-    end while;
+  DELETE FROM shop.sales_statistics_1 WHERE sdate = SDATE;
+  INSERT INTO shop.sales_statistics_1
+  SELECT sdate, product_id, product_name, SUM(sales_quantity) AS sales_quantity, SUM(sales_amount) AS sales_amount
+    FROM shop.sales_record
+   GROUP BY sdate, product_id, product_name;
+  
+  DELETE FROM shop.sales_statistics_2 WHERE sdate = SDATE;
+  INSERT INTO shop.sales_statistics_2
+  SELECT a.sdate, b.product_type, SUM(a.sales_quantity) AS sales_quantity, SUM(a.sales_amount) AS sales_amount
+    FROM shop.sales_record a 
+    LEFT JOIN shop.product b 
+      ON a.product_id = b.product_id
+   GROUP BY a.sdate, b.product_type;
 END
 ```