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Adjective. ( en adjective ) (archaic) Condensed; compact; dense. The huge condense bodies of planets. — Bentley. ----. As verbs the difference between shrink and condense is that shrink is to cause to become smaller while condense is...
- Overview
- Limitations and restrictions
- Recommendations
- Permissions
- Remarks
- Use SQL Server Management Studio
- Use Transact-SQL
- After you shrink a database
- Related content
Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance
This article describes how to shrink a database in SQL Server by using Object Explorer in SQL Server Management Studio or Transact-SQL.
•The database can't be made smaller than the minimum size of the database. The minimum size is the size specified when the database was originally created, or the last explicit size set by using a file-size-changing operation, such as DBCC SHRINKFILE. For example, if a database was originally created with a size of 10 MB and grew to 100 MB, the smallest size the database could be reduced to is 10 MB, even if all the data in the database has been deleted.
•You can't shrink a database while the database is being backed up. Conversely, you can't back up a database while a shrink operation on the database is in process.
•To view the current amount of free (unallocated) space in the database. For more information, see Display Data and Log Space Information for a Database
•Consider the following information when you plan to shrink a database:
•A shrink operation is most effective after an operation that creates a large amount of unused storage space, such as a large DELETE statement, truncate table, or a drop table operation.
•Most databases require some free space to be available for regular day-to-day operations. If you shrink a database repeatedly and notice that the database size grows again, this indicates that the free space is required for regular operations. In these cases, repeatedly shrinking the database is a wasted operation. Autogrow events necessary to grow the database file(s) hinder performance.
•A shrink operation doesn't preserve the fragmentation state of indexes in the database, and generally increases fragmentation to a degree. This is another reason not to repeatedly shrink the database.
•Unless you have a specific requirement, don't set the AUTO_SHRINK database option to ON.
Requires membership in the sysadmin fixed server role or the db_owner fixed database role.
Shrink operations in progress can block other queries on the database, and can be blocked by queries already in progress. Introduced in SQL Server 2022 (16.x), shrink database operations have a WAIT_AT_LOW_PRIORITY option. This feature is a new additional option for DBCC SHRINKDATABASE and DBCC SHRINKFILE. If a new shrink operation in WAIT_AT_LOW_PRIORITY mode can't obtain the necessary locks due to a long-running query already in progress, the shrink operation will eventually time out after one minute and silently exit, preventing other queries from being blocked. For more information, see DBCC SHRINKDATABASE.
For information on file management and shrink operations specific to Azure SQL Database, see Manage file space for databases in Azure SQL Database.
Applies to: SQL Server, Azure SQL Managed Instance
Shrink a database
1.In Object Explorer, connect to an instance of the SQL Server Database Engine, and then expand that instance.
2.Expand Databases, and then right-click the database that you want to shrink.
3.Point to Tasks, point to Shrink, and then select Database.
•Database
Shrink a database
1.Connect to the Database Engine.
2.From the Standard bar, select New Query.
3.Copy and paste the following example into the query window and select Execute. This example uses DBCC SHRINKDATABASE to decrease the size of the data and log files in the UserDB database, and to allow for 10 percent free space in the database.
Data that is moved to shrink a file can be scattered to any available location in the file. This causes index fragmentation and can slow the performance of queries that search a range of the index. To eliminate the fragmentation, consider rebuilding the indexes on the file after shrinking. For more information, see Rebuild an index.
Code sample
DBCC SHRINKDATABASE (UserDB, 10);GOCompress, which also means to reduce to a compact state, differs from condense in that it connotes a pressing or squeezing of something formless or diffused into definite shape or into a small compass. Constrict means to make narrow or smaller in diameter either by contraction or by squeezing. Deflate means to cause to shrink by exhausting of a ...
Jul 16, 2024 · Disk Management is a built-in tool which Windows provides, it allows you to create a hard disk partition, or shrink the existing hard disk to create new unallocated space that can be used for a new partition. Note: If you would like to do disk partition or shrink, we recommend that you should back up your personal files first to prevent data lost.
- Right click on the Start button to open the Win+X menu, and click/tap on Disk Management (diskmgmt.msc).
- Right click or press and hold on the partition/volume (ex: "D") you want to shrink, and click/tap on Shrink Volume. If Shrink Volume is grayed out, then it is not supported for the partition/volume.
- Type in how many MB you want to shrink the partition/volume by, and click/tap on Shrink. You can compare the given Size of available shrink and Total size after shrink to help determine the amount of space you want to shrink this partition/volume by.
- If successful, you can now create a New Simple Volume with the Unallocated space if you like.
Jan 11, 2024 · Coming to the amount of space being freed, shrink volume may take more or less time. If the space being freed is less, shrink volume will operate quickly, while you may have to wait for a few minutes while looking to free large space. Hence, on average, shrink volume may take anywhere between 15-20 minutes to 1-2 hours based on the above two ...
People also ask
Does shrink volume take more or less time?
Why does shrink volume take more time if partition size is reduced?
What factors affect the total time in completing a shrink volume?
What happens if you shrink a database?
Dec 8, 2016 · If you shrink a database, all files associated with that database will be shrunk. If you shrink a file, then only the chosen file will be shrunk. You only need to use the Shrink Database command. But it is not usually a good practice to do this and is not a recommended practice either.
