SQL Server Schema Corruption Error 211: A Technical Solution

Introduction

The SQL Schema is a logical collection of SQL Objects including the tables, associated with columns, its relevant entries, or other elements. While creating the schema, a user will be able to access the database in more effective manner. However, a situation occurs in SQL server that different errors occurs while accessing it. One such error is SQL server error 211, which occurs when the server table is getting updated. In the following section, we will cover reasons for corruption in the server Schema and then possible solutions to overcome this error.

Problem Statement

Suppose a user tries to update some database tables on his server and meanwhile a schema corruption error message occurs on the system. This error can exist in any version of SQL Server such as Server 2005, 2008 etc.
“Msg: 211, Level 23, State 51, Line 1 Possible schema corruption.
Run DBCC CHECKCATALOG
Msg 0, Level 20, State 0, Line 0”

Reasons Behind SQL Server Error 211

Generally, schema corruption in database evolve very rarely in the SQL Server. When this error took place, a user have to check out the main cause of the error i.e., either via SQL error Log files or some other.
There are multiple reasons where schema gets corrupted and some of them are mentioned below:

• Due to improper computer activities by server users
• Sudden software failure leads to Schema corruption
• Hardware failure is the major issue behind corruption

How to Fix Corruption Error 211 in SQL Server

There are several methods to resolve this server error. A user can choose any one approach to remove or delete the schema corruption which is present within the server. Following are the all possible solutions to fix the error:

• One of the compatible solution for resolving this error is to restore the backup files of the database. In addition, go through following scenarios that will help you in restoring backup files:
1. If a user has backup of transaction log, then take a backup of tail-log and restore the latest backup completely with entire transaction logs that are ending with tail-log backup. In such case, the result will become in 0 data loss.
2. If a user does not have a backup of the transaction log then, develop a new database and import more data as possible or if a user is able to determine culprit table, then drop that table & recreate it.
• The another approach is to repair entire MDF database file and then, you will have to deploy the database again.
• The last manual trick is to execute DBCC CHECKCATALOG command on the server screen.

When you will run DBCC command the error will be displayed. Sometimes, much exceptions might occur while executing the Transact-SQL statement through SQL users with dedicated Schema. Make sure, a user will get the suitable suggestion from SQL server database by running DBCC CHECKCATALOG syntax. With the help of this command, users will get to know the location and reason behind the SQL server error 211. However, DBCC CHECKCATALOG signifies no error, but it is not possible at all time.

Alternate Solution to Resolve SQL Server Database Corruption

The most appropriate solution for fixing SQL error code 211 is third party SQL recovery tool. It is safe and secure way to troubleshoot this error with help of following steps:
Step1: Launch SQL Recovery, Add MDF file and press Open button

Step 2: Analyze all your data of the server file and then click on Export button

Step 3: Now, select an option between two i.e., with the only Schema or with Schema & Data for exporting MDF file and click on save to start migration process

Finally, you will be able to get a healthy MDF file with help of this solution and hence, fix SQL server error 211.

Conclusion

Here we are ending with one of the server error, which create hurdle while accessing the SQL Server database. The best possible solutions are also discussed to overcome this possible Corruption Schema error. Well, it is recommended to first restore the backup file of server, if a user is having it. Else, you can go for other solution for resolving SQL server schema corruption error 211.

Suggested Reading

• Transaction Log Full For SQL Server
• SQL Backup Repair Tool to Recover Corrupt BAK File (Review)