在MS SQLSERVER中一直有這樣的問題,SQLSERVER的狀態"置疑",原因約有以下幾條:

2.硬體(HD)損壞,造成日誌和資料檔案寫錯誤;

3.硬碟的空間不夠,比如日誌檔案過大;

解決辦法:

最簡單的辦法是有資料庫的全備份,然後恢復即可.

步驟:

USE MASTER

GO

DROP DATABASE DB_SUEPECT

2.建立同名的資料庫:

USE master

GO

CREATE DATABASE DB_SUSPECT

ON

( NAME = DBNAME_DAT,

FILENAME = "C:",

SIZE = 10,

FILEGROWTH = 5 )

LOG ON

( NAME = "DBNAME_LOG",

FILENAME = "g:",

SIZE = 5MB,

FILEGROWTH = 5MB )

GO

3.恢復資料庫:

RESTORE DATABASE DB_SUSPECT

FROM DBNAME_BACKUP.DAT

4.資料庫完整性檢測:

DBCC CHECKDB("DB_SUSPECT")

5.重新啟動MSSQLSERVER服務.

如果沒有全備份,那就要用一些特殊的方法:

1.設定資料庫為緊急模式

Use Master

GO

sp_configure "allow updates", 1

reconfigure with override

GO

UPDATE sysdatabases SET status = 32768 where name = "DB_SUSPECT"

GO

2.停掉SQL Server服務:

.Net STOP MSSQLSERVER

3.把原始資料庫的資料檔案DBNAME_DAT.MDF,DBNAME_LOG.LDF移走:

4.啟動SQL Server服務:

.Net START MSSQLSERVER

5.重新建立一個同名的資料庫DB_SUSPECT；

USE master

GO

CREATE DATABASE DB_SUSPECT

ON

( NAME = DBNAME_DAT,

FILENAME = "C:",

SIZE = 10,

FILEGROWTH = 5 )

LOG ON

( NAME = "DBNAME_LOG",

FILENAME = "g:",

SIZE = 5MB,

FILEGROWTH = 5MB )

GO

6.設定資料庫執行在單使用者的模式:

USE MASTER

GO

ALTER DATABASE DB_SUSPECT SET SINGLE_USER

GO

7.停掉SQL服務:

.Net STOP MSSQLSERVER

8.把原來的資料檔案再覆蓋回來:

9.啟動SQL Server服務:

.Net START MSSQLSERVER

10.重新設定SQLSERVER的狀態:

USE MASTER

GO

EXEC sp_resetstatus "DB_SUSPECT"

11.資料庫完整性檢測:

DBCC CHECKDB("DB_SUSPECT")

12.恢復資料庫為多使用者模式:

USE MASTER

GO

ALTER DATABASE DB_SUSPECT SET MULTI_USER

GO

13.恢復SQLSERVER原始的配置:

USE MATER

GO

UPDATE sysdatabases SET status = 4194320 where name = "DB_SUSPECT"

GO

14.配置SQLSERVER不允許更新系統表:

USE MASTER

GO

sp_configure "allow updates", 0

reconfigure with override

GO

15.重新啟動MSSQLSERVER服務:

最好重新啟動作業系統

16.備份資料庫:

可以透過SQLSERVER企業管理器或T-SQL.需要備份MASTER和DB_SUSPECT

補充一點，如果用DOMAIN\USER時,要注意對.MDF.LDF的所在目錄的許可權.

靈驗指令碼

遇到這種資料庫置疑情況，就執行下面這個指令碼，屢試不爽：

======================================================

--before running any script, run the following to set the

master database to allow updates

USE master

GO

sp_configure "allow updates", 1

GO

RECONFIGURE WITH OVERRIDE

GO

--Run the following script

UPDATE master..sysdatabases SET status = status ^ 256

WHERE name = "Database_Name"

--Run the following script

exec SP_resetstatus Database_Name

--stop and start the MSDTC at this stage

--After the procedure is created, immediately disable

updates to the system tables:

exec sp_configure "allow updates", 0

GO

RECONFIGURE WITH OVERRIDE

GO