December 2017
Intermediate to advanced
434 pages
10h 14m
English
Content preview from SQL Server 2017 Administrator's Guide
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Shrink database
This task serves to return free space in data files back to the filesystem. Internally, this task is executed as the DBCC SHRINKDATABASE() function. In production, this task is almost useless because when the database has some free space, it's better for performance and less growth operations occur.
The only situation to use the Shrink database task is when some bigger data was loaded once to some staging tables to the database, then the data was processed to final structures, and staging tables were dropped. Maybe then the shrink would be executed. However, we can say that everyday shrinking is useless and a disk-intensive operation that should be used rarely.
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