SQL Server files global page allocation (GAM): A MS SQL files server consists of several pages, which store its allocation structures. One of these is the page Global Allocation page (GAM). It contains information that is related to extensions assigned to the SQL Server files
Index Allocation Map (IAM) pages :. Index Allocation Map (IAM) pages are allocation pages that contain information of extensions that an index / table uses
SQL Table corruption due to multiple IAM pages error :. Sometimes, you will encounter many errors due to multiple IAM pages for a single object. These types of errors indicate corruption of the table. The error you might encounter after the corruption in your state of the SQL Server database table:
Server: Msg 8947, Level 16, State 1
Table error: Multiple IAM pages for object ID O_ID, index ID I_ID contains the appropriations for the same range. IAM pages P_ID1 and P_ID2.
because this error may occur? If you have experienced the above error, then it implies that the IAM chain for the specified index has at least two IAM pages (P_ID1 & p_id) that cover the same GAM interval (interval is the file space used by the page GAM in the map. This is about 4 GB). Each index, which is assigned by a GAM interval that has more than one point, requires an IAM page for that specific GAM interval. For all ranges GAM extensions, an IAM page contains a bit for each measure. A bit 'together shows that the particular index is given to this index. A common reason for this error multiple IAM pages that may have occurred can be a hardware failure. SQL database recovery becomes necessary for you in this case
How to repair damaged MDF file You can run the following SQL database recovery methods:.?
• replace the damaged hardware: First of all, you need to check if there is any problem with a hardware failure. For this, you can run hardware diagnostics and monitor the application of Windows and SQL Server error log. If there is such a problem, replace the damaged hardware (if necessary).
• Recovery of SQL database from backup: If you have a clean backup to the SQL database, then you can easily recover from it. But, in the absence of such a valid backup is there, then you can use a third-party tool
SQL Database Recovery using third party tool :. You can invest in a SQL MDF repair tool, which is an easy, efficient, secure and time-saving way to address the problem. One of these powerful SQL database recovery tool is SysTools SQL Recovery software. It 'a superior tool with a user-friendly interface and employs advanced technologies for the efficient recovery and fast algorithms for quick repairs MDF.
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