June 2015
Intermediate to advanced
1800 pages
70h 6m
English
book
Microsoft SQL Server 2014 Unleashed
by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
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Transactions and Memory-Optimized Tables
As described previously in the sections describing the in-memory data row and index structures, SQL Server In-Memory OLTP uses row-versioning to determine which row versions are visible to which transactions. This is accomplished by maintaining an internal Transaction ID that serves the purpose of a timestamp. The timestamps are monotonically increasing every time a transaction commits. A transaction’s start time is the timestamp in the database at the time the transaction starts. When the transaction commits, it generates a new timestamp, the Global Transaction Timestamp, which is used to uniquely identify that transaction. Timestamps are used to specify the following:
Commit/End Time—The distinct point ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.