chore: 首次簽入 Thinkyu ASP.NET 專案

- 加入 Visual Studio / ASP.NET .gitignore - 排除建置輸出、IDE 設定、NuGet packages、大型 MSI 安裝檔
2026-09-10 09:42:37 +08:00
commit 577060bc78
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+-- =====================================================
+-- 初始化 SignUp 表的序號 (SeqNo) 
+-- 用途：為現有的參加人員記錄補充序號
+-- 說明：按活動(CourseID)和ID排序，為每個活動內的參加人員自動編號
+-- =====================================================
+
+-- 方式一：使用 ROW_NUMBER() - 推薦（支援 SQL Server 2005+）
+-- 此方式會為每個活動內的記錄按 ID 順序編號
+
+BEGIN TRANSACTION;
+
+UPDATE SignUp
+SET SeqNo = rn.RowNum
+FROM SignUp su
+INNER JOIN (
+    SELECT 
+        ID,
+        ROW_NUMBER() OVER (PARTITION BY CourseID ORDER BY ID ASC) AS RowNum
+    FROM SignUp
+) rn ON su.ID = rn.ID
+WHERE su.SeqNo = 0 OR su.SeqNo IS NULL;
+
+-- 顯示更新結果
+SELECT '序號更新完成' AS [操作結果];
+SELECT CourseID, COUNT(*) AS [人數], MIN(SeqNo) AS [最小序號], MAX(SeqNo) AS [最大序號]
+FROM SignUp
+WHERE SeqNo > 0
+GROUP BY CourseID
+ORDER BY CourseID;
+
+COMMIT TRANSACTION;
+
+-- =====================================================
+-- 驗證結果
+-- =====================================================
+
+-- 查看更新後的資料
+SELECT 
+    ID,
+    CourseID,
+    SeqNo,
+    Name,
+    Mobile,
+    CheckInTime,
+    CheckOutTime
+FROM SignUp
+ORDER BY CourseID ASC, SeqNo ASC;
+
+-- 檢查是否有未設定序號的記錄
+SELECT 
+    ID,
+    CourseID,
+    Name,
+    Mobile
+FROM SignUp
+WHERE SeqNo = 0 OR SeqNo IS NULL
+ORDER BY CourseID, ID;
+
+-- 檢查序號是否重複
+SELECT 
+    CourseID,
+    SeqNo,
+    COUNT(*) AS [重複次數]
+FROM SignUp
+WHERE SeqNo > 0
+GROUP BY CourseID, SeqNo
+HAVING COUNT(*) > 1
+ORDER BY CourseID, SeqNo;