Each file within a database can be reduced to remove unused pages. Although the Database Engine will reuse space effectively, there are times when a file no longer needs to be as large as it once was; shrinking the file may then become necessary. Both data and transaction log files can be reduced, or shrunk. Sweet And Soft Texture Pack. The database files can be shrunk manually, either as a group or individually, or the database can be set to shrink automatically at specified intervals. Files are always shrunk from the end. For example, if you have a 5-GB file and specify 4 GB as the target_size in a DBCC SHRINKFILE statement, the Database Engine will free as much space as it can from the last 1 GB of the file. If there are used pages in the part of the file being released, the Database Engine first relocates the pages to the part of the file being retained.

You can only shrink a database to the point where it has no free space remaining. For example, if a 5-GB database has 4 GB of data and you specify 3 GB as the target_size of a DBCC SHRINKFILE statement, only 1 GB will be freed. When the AUTO_SHRINK database option has been set to ON, the Database Engine automatically shrinks databases that have free space. This option is set using the ALTER DATABASE statement. By default, it is set to OFF. The Database Engine periodically examines the space usage in each database.

Install Sme Server For Centos more. If a database has the AUTO_SHRINK option set to ON, the Database Engine reduces the size of the files in the database. This activity occurs in the background and does not affect any user activity within the database.

How to Shrink SQL Server Transaction Logs. Get the logical name of the transaction log file. Free Program Decora Stil Slatina Program here. The file should shrink to a ridiculously small shadow of its. Shrinking the transaction log reduces its physical size by removing one or more inactive virtual log files. The unit of the size reduction is always the virtual log file. For example, if you have a 600 megabyte (MB) log file that has been divided into six 100 MB virtual logs, the size of the log file can only be reduced in 100 MB increments.

To set a database to shrink automatically. You can manually shrink a database or files within a database using the DBCC SHRINKDATABASE statement or the DBCC SHRINKFILE statement. If a DBCC SHRINKDATABASE or DBCC SHRINKFILE statement cannot reclaim all the specified space in a log file, the statement will issue an informational message that indicates what action you must perform to make more space eligible to be freed. For more information about shrinking log files, see. DBCC SHRINKDATABASE and DBCC SHRINKFILE operations can be stopped at any point in the process, and any completed work is retained. When using the DBCC SHRINKDATABASE statement, you cannot shrink a whole database to be smaller than its original size. Therefore, if a database was created with a size of 10 MB and grew to 100 MB, the smallest the database could be reduced to is 10 MB, even if all the data in the database has been deleted.

However, you can shrink the individual database files to a smaller size than their initial size by using the DBCC SHRINKFILE statement. You must shrink each file individually, instead of trying to shrink the whole database. There are fixed boundaries from which a transaction log file can be shrunk. The size of the virtual log files within the log determines the possible reductions in size. Therefore, the log file can never be shrunk to a size less than the virtual log file.