December 2017
Intermediate to advanced
434 pages
10h 14m
English
Content preview from SQL Server 2017 Administrator's Guide
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The storage engine layer
The storage engine layer is responsible for all access to your data stored in the database and has three major components:
- Access methods
- Transaction and locking
Access methods are used to get the data out of the data and index pages, which are delivered as a resultant set of your SQL Server operation. The access methods then split deeper between operations on rows and indexes, which are responsible for maintaining the data in the row and index pages. There are several types of pages available with the SQL Server. The user data is stored in the data pages, row-overflow pages, or LOB pages (used for large objects). If there are indexes used, the index rows are stored on the index pages (and on the row-overflow and ...
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