February 6th, 2017
March 11, 2021
Have you faced the Corruption of your SQL Database?
If yes? Then you have come to the right place. This article will help you to get rid of all the problems related to SQL database Recovery.
This article is useful not only for the one who wants to fix the corrupted SQL database. But, also for the one whose major work is dependent on SQL Database. So it would be better if you have prior awareness of the SQL Database and methods of MDF File Recovery.
I am going to kick off with an easy technique to restore SQL Database. Though this article is bit lengthy but absolutely worth it.
This article is also useful for the one whose major work is dependent on SQL Database. So it would be better if you have prior awareness of the SQL Database and methods of MDF File Recovery. Moreover, It saves you from getting panicked at that time.
As SQL is very deep and interesting topic, So before beginning the direct technique to fix corrupt SQL database.
I will cover different topics like:
SQL Server is a Microsoft product mainly used to manage and store information. Microsoft SQL Server allows you to store and retrieve a huge amount of data by applying queries to the database. And we all know that Query is nothing but a set of statements which executes specific functions when executed.
Or technically we can say that SQL Server is a Relational Database Management System.
Though these services are not essential for the operation of database system but they provide value added services on top of the core database management system.
If you have worked with SQL Server, you must have heard the terms MDF, NDF, and LDF already. Those are the frequently used file name extensions in SQL Server for the Primary Data files, Secondary data files, and Log files respectively.
In SQL Server, data and log information are never stored together in the same file. Moreover, these individual files are used by only one server.
A primary data file is the beginning point of the database Every database has one primary data file. Also, all the data in the database objects such as tables, stored procedures, trigger, views, etc. is store in the primary data files only. The most common and recommended file name extension for primary data files is “.mdf”.
You can only have one primary data file for a database and the others file created comes under secondary data files. But it is not necessary to have a secondary data file so some databases do not any secondary data file. It is also possible to have multiple secondary data files for a single database. “.ndf” file extension is usually recommended for secondary data files. It’s also possible for you to store the secondary data file on a separate physical drive.
Log files in SQL Server databases keep all the log information. That information can be later used to recover and retrieve the database. The size of the log file is determined by the logging level you have set up for your database. There is at least one log file for each database. It is also possible to have more than one log file for one database. The filename extension for log files is “.ldf”.
But unfortunately, these files are prone to corruptions. Corrupt SQL Database is not less any than a nightmare. There is a very high probability that your MDF files may get damaged due to corruption.
My primary objective to write a blog post on “SQL Database Recovery” was to make you understand the main reasons behind corruption and provides you an easy solution to recover your database from corruption.
Some of the reasons are:
Sometimes executing DBCC CHECKDB and DBCC DBREPAIR commands can repair your corrupted MDF file of SQL Server. The DBCC is nothing but a set of command for checking the logical and physical consistency of a database. DBCC CHECKDB and DBCC DBREPAIR commands are a new query in MS SQL Management Studio.
Step 1: Open Microsoft SQL Server Management Studio on your system.
Step 2: Now click the New Query button.
This will open a new query page.
Step 3: Write the SQL Scripts
The commands that you have to execute are stated below:
ALTER DATABASE database_name SET EMERGENCY
DBCC check DB (database_name)
ALTER DATABASE database_name SET SINGLE_USER with ROLLBACK IMMEDIATE
DBCC DATABASE (database_name, REPAIR_ALLOW_DATA_LOSS)
ALTER DATABASE database_name SET MULTI_USER
Step 4: Now click on Execute tab.
Sometimes the degree of corruption may be severe and this manual solution might not be a successful approach. So if your MDF file is facing a high level of corruption then you have to go for some other method such MS SQL Database Recovery by SysInfoTools. So, the main question which arises is – How to retrieve data from highly corrupted MDF File? Best option to retrieve your vital MDF and other objects of SQL Server is to restore from a good Backup file.
As there are lots of third party recovery software which will help you to get rid of this problem. But which MDF File Repair software to choose for an efficient and reliable solution in the area of major concern. So, choosing a trusted software for SQL Database Recovery s a bit difficult as there are lots of third-party solutions available in the market.
MS SQL Database Recovery of SysInfo is a highly innovative tool which swiftly scans and recovers your data from corrupted and Compressed MDF file in no time and allows you to save your recovered data in a new database file. This tool offers high accuracy recovery of file objects such as tables, programmability, views, triggers, default and etc.
SysInfo SQL data Recovery software is the only tool in the market that provides ROW level compression, PAGE-level compression as well as the Unicode compression.
It has many other unmatchable features which make the SQL database Recovery Tool on the top of the line.