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Home > Administration > Procedure to Know How to Recover SUSPECT Database in SQL Server

Procedure to Know How to Recover SUSPECT Database in SQL Server

MS SQL Server Database in SUSPECT mode is the pure sign that you cannot utilize the database or no any transactions are performed likely until it is back to online. You may have gone through a situation that your database is marked as SUSPECT. It occurs due to various reasons such as:

  • Corruption in Transactional log file
  • Defective Hardware
  • Missing Transaction log file of database
  • Virus attack
  • Improper SQL Server shutdown

Look at the error log of your MS SQL Server to know the exact cause for your database. Error log expresses the precise cause why and how to recover SUSPECT Database in SQL Server 2000 / 2005 / 2008r2 / 2012 / 2014.

SysTools SQL Database Repair is one of the best solutions for quandaries of MS SQL Server. The software is programmed in such a way that it recovers and repairs the complete database from SUSPECT mode in exact form. The application is 100 % safe as well as secure to execute the recovery process.

Reasons of SUSPECT Database in SQL Server 2000 /2005 / 2008r2 /2012 /2014

  • The drive is unapproachable to the server where SQL server log files are preserved. This can be initiated by corruption in hard drive partition.
  • Occasionally, viral attack or malicious malware may be erasing server files. These files are missing as well as cannot be found. There can be various causes for the database in Suspect mode.
  • Another cause for SUSPECT mode is because of recent MS SQL server crash in the middle of a transaction. If the transaction is updating values for large database and it is still midway, some changes made to some value and not others. It causes corruption in transaction logs and errors are made.
  • Other application may be controlled by the server’s device files that are avoiding access to data files. These consequences in matters while opening SQL server database and connecting to it. Various antivirus blocks some files, which they think problematic. There may be corruption in the file, which is caused by malware that scanners start to repair as well as fix.
  • Other reasons for the suspect database are corruption in transaction log instigated due to an incorrect shutdown of the local system.

Techniques to Repair Database from Suspect Mode in SQL Server

In a manner to determine this issue, it needs to change the status of the database to EMERGENCY mode, which gives read-only access to the administrator. The main determination of altering the mode of the database to the emergency is troubleshooting. For altering the status of database to EMERGENCY mode, execute the below T-SQL query:

ALTER DATABASE dbName SET EMERGENCY

Once you have altered database status now, the administrator can utilize it. Another step is the execution of DBCC CHECKDB. It checks all logical as well as the physical integrity of the stated database. If it catches any issue with the database then, there are some suggested repair options, i.e. repair_fast, repair_rebuild, and repair_allow_data_loss.

DBCC CHECKDB (‘dbName’)

Run T-SQL query to simply rollback any transaction as well as bring SQL database into Single User mode.

ALTER DATABASE dbName SET SINGLE_USER WITH ROLLBACK IMMEDIATE

Now, again execute DBCC CHECKDB with repair options to recover the SUSPECT database.

DBCC CHECKDB (dbName, REPAIR_ALLOW_DATA_LOSS)

If you discover that script runs effectively, bring the database back from the mode of single-user to multi-user mode. Run the command to do it.

Note: By using DBCC CHECKDB with repair_allow_data_loss might recover database from the suspect mode in SQL Server. However, it causes data loss from the database.

Final Words

SQL Server is mainly utilized for database management to save as well as retrieve data. There are various errors as well as issues come across while using a database server. Some of them may be corrected by using manual methods, other may not. Out of which, one issue is Suspect Mode. Some advanced SQL users find it difficult to utilize data or connect to the database once it enters into suspect mode. After understanding this, we have discussed and answered the main user’s query i.e. how to recover SUSPECT database in SQL Server.

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