Blogs from Suhas
Dirtying my hands in SQL Server
Copy On Write
Lock Pages in Memory
Minimum Recovery LSN
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SQL Server 2005
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Blogs from Suhas
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Internals of Database Snapshot – Part 3: Snapshot and Mirroring
In my earlier posts, we have seen how database snapshots work, and how the Buffer Pool is used when we query Snapshot Databases. In this post, we will see how Database Snapshots work, when they are created against Mirrored Databases. Let us assume we have a mirroring setup, as described in the below...
15 Aug 2011
Internals of Database Snapshot – Part 2: Snapshot and the Buffer Pool
In my earlier post, we have seen what Database Snapshots are, and how the Database Snapshots are maintained by the SQL Server Database Engine. In this post we will see how the data and index pages, belonging to the Snapshot, are managed in the Buffer Pool. Before we start drilling down further, let me...
2 Aug 2011
Internals of Database Snapshot
In this post, we will explore the internals of Database Snapshot. Most of this information is already available in the Internet, in the posts authored by the SQL Server Development Team and the CSS Escalation Team; however, through this post we will attempt to consolidate all of these information for...
31 Jul 2011
Revealing the secrets - Truncating a Transaction Log File
In my earlier blog post on Shrinking the Transaction Log files in SQL Server , I had mentioned that a VLF can be truncated only when all transactions, that have at least one command written into the specified VLF have either been committed or rolled back. While this is true, I understand that it might...
18 Jul 2009
Database Corruption Part 2 :: How to attach a database using the Create-Replace method
Ok, so, as promised, here’s my next post on Database Corruption. In this post, we will have a look at how to attach a database that you have detached and can now no longer attach back to SQL Server. This may happen if the database was already corrupt before it was detached; or if the database files have...
12 May 2009
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