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# SignUp 序號初始化 SQL 使用指南
## 概述
本指南提供多個 SQL 腳本,用於初始化和管理 `SignUp` 表中的 `SeqNo`(序號)欄位。
## 前置條件
- SQL Server 2005 或更高版本
- 擁有 `SignUp` 表的修改權限
- 建議先備份資料庫
## 文件清單
### 1. 初始化SignUp序號.sql
**用途**:最簡單的初始化腳本,一鍵補充所有序號
**功能**
- ✅ 為 SeqNo = 0 或 NULL 的記錄自動編號
- ✅ 按活動(CourseID)分組
- ✅ 按ID順序編號
- ✅ 包含驗證查詢
**適用場景**
- 首次初始化序號
- 批量補充缺失的序號
**執行步驟**
1. 在 SQL Server Management Studio 中開啟此文件
2. 修改事務範圍(如需要)
3. 全選所有代碼並執行
4. 檢查結果輸出確認更新成功
### 2. SignUp序號管理工具.sql
**用途**:提供多種序號管理場景的工具集
**包含的場景**
#### 場景1:初始化所有未設定的序號
```sql
-- 將此代碼段取消註釋並執行
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
WHERE SeqNo = 0 OR SeqNo IS NULL
) rn ON su.ID = rn.ID
```
**適用**:批量初始化序號
#### 場景2:重新編號特定活動
```sql
DECLARE @CourseID INT = 1; -- 改為目標活動編號
UPDATE SignUp
SET SeqNo = rn.RowNum
FROM SignUp su
INNER JOIN (
SELECT
ID,
ROW_NUMBER() OVER (ORDER BY ID ASC) AS RowNum
FROM SignUp
WHERE CourseID = @CourseID
) rn ON su.ID = rn.ID
```
**適用**:某個活動序號亂掉,需要重新編號
#### 場景3:檢查序號異常
提供幾個檢查查詢:
- 查看 SeqNo = 0 或 NULL 的記錄
- 查看序號重複的記錄
- 查看序號不連續的活動
#### 場景4:統計各活動序號分佈
查看所有活動的序號狀態是否正常
#### 場景5:修復所有序號異常
完整的修復腳本,修復所有有問題的序號
#### 場景6:數據備份檢查
查看備份表中的歷史記錄
## 使用步驟
### 步驟1:檢查當前狀態
```sql
-- 執行此查詢查看異常
SELECT * FROM SignUp WHERE SeqNo = 0 OR SeqNo IS NULL;
SELECT * FROM SignUp WHERE (SeqNo = 0 OR SeqNo IS NULL) OR SeqNo > 1000;
```
### 步驟2:執行初始化
根據需要選擇相應的場景腳本執行
### 步驟3:驗證結果
```sql
-- 驗證所有記錄是否都有序號
SELECT COUNT(*) AS []
FROM SignUp
WHERE SeqNo = 0 OR SeqNo IS NULL;
-- 檢查序號是否重複
SELECT CourseID, SeqNo, COUNT(*)
FROM SignUp
WHERE SeqNo > 0
GROUP BY CourseID, SeqNo
HAVING COUNT(*) > 1;
```
## 關鍵的 SQL 邏輯
### ROW_NUMBER() 函數
```sql
ROW_NUMBER() OVER (PARTITION BY CourseID ORDER BY ID ASC) AS RowNum
```
**說明**
- `PARTITION BY CourseID` - 按活動分組
- `ORDER BY ID ASC` - 按ID升序排列
- 結果:每個活動內的記錄會被編號為 1, 2, 3...
### 更新語句
```sql
UPDATE SignUp
SET SeqNo = rn.RowNum
FROM SignUp su
INNER JOIN (...) rn ON su.ID = rn.ID
WHERE su.SeqNo = 0 OR su.SeqNo IS NULL
```
**說明**
- 只更新 SeqNo = 0 或 NULL 的記錄
- 聯接查詢結果和原表
- 將計算的序號寫入 SeqNo 欄位
## 執行範例
### 範例1:初始化所有序號
```sql
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;
-- 查看更新筆數
SELECT @@ROWCOUNT AS [];
COMMIT TRANSACTION;
```
### 範例2:特定活動重新編號
```sql
BEGIN TRANSACTION;
-- 重新編號活動編號為 5 的所有參加人員
UPDATE SignUp
SET SeqNo = rn.RowNum
FROM SignUp su
INNER JOIN (
SELECT
ID,
ROW_NUMBER() OVER (ORDER BY ID ASC) AS RowNum
FROM SignUp
WHERE CourseID = 5
) rn ON su.ID = rn.ID
WHERE su.CourseID = 5;
SELECT '重新編號完成' AS [];
COMMIT TRANSACTION;
```
### 範例3:查看各活動的序號狀態
```sql
SELECT
c.ID AS [],
c.CourseName AS [],
COUNT(s.ID) AS [],
CASE
WHEN MAX(s.SeqNo) = COUNT(s.ID) THEN '✓ 正常'
ELSE '✗ 異常'
END AS []
FROM Classes c
LEFT JOIN SignUp s ON c.ID = s.CourseID
GROUP BY c.ID, c.CourseName
ORDER BY c.ID;
```
## 常見問題
### Q1:如何檢查序號是否已經初始化?
```sql
SELECT COUNT(*) FROM SignUp WHERE SeqNo = 0 OR SeqNo IS NULL;
```
- 返回 0:全部已初始化
- 返回 > 0:還有未初始化的記錄
### Q2:如何查看某個活動的序號?
```sql
SELECT ID, Name, Mobile, SeqNo
FROM SignUp
WHERE CourseID = 1
ORDER BY SeqNo;
```
### Q3:如何檢查序號是否連續?
```sql
SELECT CourseID, MIN(SeqNo), MAX(SeqNo), COUNT(*)
FROM SignUp
WHERE SeqNo > 0
GROUP BY CourseID;
```
- 如果 `MAX(SeqNo) = COUNT(*)`,說明序號連續且正常
### Q4:如何復原被修改的序號?
```sql
-- 查看備份表
SELECT * FROM SignUp_BAK
WHERE DB_TRMOD = 'UPDATE'
ORDER BY DB_TRDAT DESC
LIMIT 100;
```
### Q5:執行失敗怎麼辦?
1. 檢查是否有足夠的 UPDATE 權限
2. 檢查 SignUp 表是否存在
3. 檢查是否有其他鎖定操作
4. 查看 SQL Server 錯誤日誌
## 回滾方案
如果執行出錯,可以使用備份表進行復原:
```sql
-- 查看備份表中的 UPDATE 操作
SELECT * FROM SignUp_BAK
WHERE DB_TRMOD = 'UPDATE'
ORDER BY DB_TRDAT DESC;
-- 使用備份數據復原(謹慎操作!)
-- 建議聯繫數據庫管理員
```
## 安全建議
1. **執行前備份**
```sql
BACKUP DATABASE [報到系統] TO DISK = 'D:\Backup\報到系統.bak'
```
2. **使用事務**
```sql
BEGIN TRANSACTION;
-- 執行更新
-- 檢查結果
COMMIT TRANSACTION; -- 或 ROLLBACK TRANSACTION;
```
3. **逐步驗證**
- 先查看要更新的記錄
- 執行更新
- 立即驗證結果
4. **記錄操作**
- 記錄執行時間
- 記錄更新筆數
- 記錄任何錯誤
## 技術詳情
### 序號編號邏輯
使用 `ROW_NUMBER()` 窗口函數進行分區編號:
```
活動1
ID=1 → SeqNo=1
ID=3 → SeqNo=2
ID=5 → SeqNo=3
活動2
ID=2 → SeqNo=1
ID=4 → SeqNo=2
ID=6 → SeqNo=3
```
### 性能考量
- `ROW_NUMBER()` 在大資料集上性能最優
- 使用 `WHERE SeqNo = 0 OR SeqNo IS NULL` 減少更新範圍
- 建議為 `CourseID` 和 `SeqNo` 建立索引
### 兼容性
支援的 SQL Server 版本:
- ✅ SQL Server 2005+
- ✅ SQL Server 2008/R2
- ✅ SQL Server 2012+
- ✅ SQL Server 2016+
- ✅ SQL Server 2019+
- ✅ SQL Server 2022+
## 完成後檢查清單
- [ ] 備份已執行
- [ ] 事務已提交
- [ ] 所有記錄都有序號(SeqNo > 0
- [ ] 沒有序號重複
- [ ] 序號按預期連續
- [ ] 應用程序正常運行
---
**最後更新**2024年
**適用版本**SQL Server 2005+
@@ -0,0 +1,192 @@
-- =====================================================
-- SignUp 序號管理工具集
-- 提供多種場景的序號管理 SQL 腳本
-- =====================================================
-- =============================================================
-- 【場景1】初始化所有未設定序號的記錄
-- =============================================================
-- 執行此腳本可為 SeqNo = 0 或 NULL 的記錄自動補充序號
/*
DECLARE @UpdatedCount INT;
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
WHERE SeqNo = 0 OR SeqNo IS NULL
) rn ON su.ID = rn.ID
WHERE su.SeqNo = 0 OR su.SeqNo IS NULL;
SET @UpdatedCount = @@ROWCOUNT;
COMMIT TRANSACTION;
SELECT CONCAT('成功更新 ', @UpdatedCount, ' 筆記錄的序號') AS [結果];
*/
-- =============================================================
-- 【場景2】重新編號特定活動的所有參加人員
-- 用途:當某個活動的序號亂掉時,重新編號
-- =============================================================
/*
DECLARE @CourseID INT = 1; -- 修改為要重新編號的活動編號
BEGIN TRANSACTION;
UPDATE SignUp
SET SeqNo = rn.RowNum
FROM SignUp su
INNER JOIN (
SELECT
ID,
ROW_NUMBER() OVER (ORDER BY ID ASC) AS RowNum
FROM SignUp
WHERE CourseID = @CourseID
) rn ON su.ID = rn.ID
WHERE su.CourseID = @CourseID;
SELECT CONCAT('活動 ', @CourseID, ' 的序號已重新編號') AS [結果];
COMMIT TRANSACTION;
*/
-- =============================================================
-- 【場景3】檢查序號異常
-- =============================================================
-- 查看所有序號為 0 或 NULL 的記錄
SELECT
ID,
CourseID,
Name,
Mobile,
SeqNo
FROM SignUp
WHERE SeqNo = 0 OR SeqNo IS NULL
ORDER BY CourseID, ID;
-- 查看序號重複的記錄
SELECT
CourseID,
SeqNo,
COUNT(*) AS [],
STRING_AGG(CAST(ID AS VARCHAR), ',') AS [ID]
FROM SignUp
WHERE SeqNo > 0
GROUP BY CourseID, SeqNo
HAVING COUNT(*) > 1
ORDER BY CourseID, SeqNo;
-- 查看序號不連續的活動
SELECT
CourseID,
COUNT(*) AS [],
MIN(SeqNo) AS [],
MAX(SeqNo) AS []
FROM SignUp
WHERE SeqNo > 0
GROUP BY CourseID
HAVING MAX(SeqNo) > COUNT(*)
ORDER BY CourseID;
-- =============================================================
-- 【場景4】統計各活動的序號分佈
-- =============================================================
SELECT
c.ID AS [],
c.CourseName AS [],
COUNT(s.ID) AS [],
CASE
WHEN COUNT(s.ID) = 0 THEN '無人員'
WHEN MAX(s.SeqNo) = COUNT(s.ID) THEN '✓ 序號正常'
ELSE '✗ 序號異常'
END AS [],
MIN(s.SeqNo) AS [],
MAX(s.SeqNo) AS []
FROM Classes c
LEFT JOIN SignUp s ON c.ID = s.CourseID
GROUP BY c.ID, c.CourseName
ORDER BY c.ID;
-- =============================================================
-- 【場景5】修復所有序號異常
-- 說明:將所有 SeqNo <= 0 的記錄重新編號
-- 警告:這會修改所有未正確設定序號的記錄
-- =============================================================
/*
BEGIN TRANSACTION;
DECLARE @CourseID INT;
DECLARE @CurrentCourseID INT;
DECLARE @RowNum INT;
-- 建立暫時表存儲要更新的ID和新序號
CREATE TABLE #TempUpdate (
ID INT,
NewSeqNo INT
);
-- 為每個活動中 SeqNo <= 0 的記錄分配新序號
INSERT INTO #TempUpdate (ID, NewSeqNo)
SELECT
ID,
ROW_NUMBER() OVER (PARTITION BY CourseID ORDER BY ID ASC) +
ISNULL((
SELECT MAX(SeqNo)
FROM SignUp s2
WHERE s2.CourseID = s1.CourseID AND s1.SeqNo > 0
), 0) AS NewSeqNo
FROM SignUp s1
WHERE s1.SeqNo = 0 OR s1.SeqNo IS NULL;
-- 執行更新
UPDATE SignUp
SET SeqNo = tu.NewSeqNo
FROM SignUp su
INNER JOIN #TempUpdate tu ON su.ID = tu.ID;
-- 清理暫時表
DROP TABLE #TempUpdate;
SELECT '序號修復完成' AS [操作結果];
COMMIT TRANSACTION;
*/
-- =============================================================
-- 【場景6】數據備份檢查
-- 執行本腳本前,建議先備份資料
-- =============================================================
-- 查看 SignUp_BAK 表中最近的備份記錄
SELECT TOP 100
ID,
CourseID,
SeqNo,
Name,
Mobile,
DB_TRMOD,
DB_TRDAT,
DB_TRUSR
FROM SignUp_BAK
ORDER BY DB_TRDAT DESC;
-- 統計備份記錄數
SELECT
DB_TRMOD AS [],
COUNT(*) AS [],
MAX(DB_TRDAT) AS []
FROM SignUp_BAK
GROUP BY DB_TRMOD
ORDER BY MAX(DB_TRDAT) DESC;
@@ -0,0 +1,68 @@
-- =====================================================
-- 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 [];
SELECT CourseID, COUNT(*) AS [], MIN(SeqNo) AS [], MAX(SeqNo) AS []
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 []
FROM SignUp
WHERE SeqNo > 0
GROUP BY CourseID, SeqNo
HAVING COUNT(*) > 1
ORDER BY CourseID, SeqNo;
@@ -0,0 +1,107 @@
-- ============================================================
-- 多簡訊平台架構 Migration Script
-- 建立日期:2026/6/3
-- ============================================================
-- 1. 新增 MMSPlatform 資料表
-- ============================================================
IF NOT EXISTS (SELECT 1 FROM sys.tables WHERE name = 'MMSPlatform')
BEGIN
CREATE TABLE [dbo].[MMSPlatform] (
[ID] INT NOT NULL IDENTITY(1,1),
[PlatformCode] NVARCHAR(20) NOT NULL,
[PlatformName] NVARCHAR(50) NOT NULL,
[Account] NVARCHAR(100) NULL,
[Password] NVARCHAR(100) NULL,
[Remark] NVARCHAR(200) NULL,
[DB_APPNO] INT NOT NULL DEFAULT 1,
[DB_CRDAT] DATETIME NOT NULL DEFAULT GETDATE(),
[DB_CRUSR] NVARCHAR(20) NOT NULL DEFAULT 'SYSTEM',
[DB_TRDAT] DATETIME NOT NULL DEFAULT GETDATE(),
[DB_TRUSR] NVARCHAR(20) NOT NULL DEFAULT 'SYSTEM',
CONSTRAINT [PK_MMSPlatform] PRIMARY KEY ([ID])
);
-- 預設插入兩個平台
INSERT INTO [dbo].[MMSPlatform] ([PlatformCode], [PlatformName], [DB_APPNO], [DB_CRDAT], [DB_CRUSR], [DB_TRDAT], [DB_TRUSR])
VALUES
('EVERY8D', 'EVERY8D', 1, GETDATE(), 'SYSTEM', GETDATE(), 'SYSTEM'),
('MITAKE', '三竹', 1, GETDATE(), 'SYSTEM', GETDATE(), 'SYSTEM');
PRINT 'MMSPlatform 資料表建立完成';
END
ELSE
BEGIN
PRINT 'MMSPlatform 資料表已存在,略過';
END
GO
-- 2. 新增備份表 MMSPlatform_BAK
-- ============================================================
IF NOT EXISTS (SELECT 1 FROM sys.tables WHERE name = 'MMSPlatform_BAK')
BEGIN
CREATE TABLE [dbo].[MMSPlatform_BAK] (
[ID] INT NOT NULL,
[PlatformCode] NVARCHAR(20) NOT NULL,
[PlatformName] NVARCHAR(50) NOT NULL,
[Account] NVARCHAR(100) NULL,
[Password] NVARCHAR(100) NULL,
[Remark] NVARCHAR(200) NULL,
[DB_APPNO] INT NOT NULL,
[DB_CRDAT] DATETIME NOT NULL,
[DB_CRUSR] NVARCHAR(20) NOT NULL,
[DB_TRDAT] DATETIME NOT NULL,
[DB_TRUSR] NVARCHAR(20) NOT NULL,
[DB_TRMOD] NVARCHAR(10) NOT NULL
);
PRINT 'MMSPlatform_BAK 資料表建立完成';
END
GO
-- 3. ProjectMMSAccount 新增 PlatformCode 欄位
-- ============================================================
IF NOT EXISTS (
SELECT 1 FROM sys.columns
WHERE object_id = OBJECT_ID('ProjectMMSAccount') AND name = 'PlatformCode'
)
BEGIN
ALTER TABLE [dbo].[ProjectMMSAccount]
ADD [PlatformCode] NVARCHAR(20) NULL;
PRINT 'ProjectMMSAccount.PlatformCode 欄位新增完成';
END
ELSE
BEGIN
PRINT 'ProjectMMSAccount.PlatformCode 欄位已存在,略過';
END
GO
-- 同步備份表
IF NOT EXISTS (
SELECT 1 FROM sys.columns
WHERE object_id = OBJECT_ID('ProjectMMSAccount_BAK') AND name = 'PlatformCode'
)
BEGIN
ALTER TABLE [dbo].[ProjectMMSAccount_BAK]
ADD [PlatformCode] NVARCHAR(20) NULL;
PRINT 'ProjectMMSAccount_BAK.PlatformCode 欄位新增完成';
END
GO
-- 4. BWEX 新增 CurrentMMSPlatform 設定
-- ============================================================
IF NOT EXISTS (
SELECT 1 FROM [dbo].[BWEX] WHERE [BSNUM] = 'CurrentMMSPlatform' AND [BSITM] = ' 1'
)
BEGIN
INSERT INTO [dbo].[BWEX] ([BSNUM], [BSITM], [BSNAM])
VALUES ('CurrentMMSPlatform', ' 1', 'EVERY8D');
PRINT 'BWEX CurrentMMSPlatform 設定新增完成';
END
ELSE
BEGIN
PRINT 'BWEX CurrentMMSPlatform 設定已存在,略過';
END
GO