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Relax and enjoy the fact that your don’t have to bug the SAN admin for space in the cloud. It’s really, really bad for your performance. That doc from Microsoft recommends (with a warning) enabling autoshrink on your databases. Congratulations, you just took downtime and took several hours of your life to save $30/month. If you really want to make the database smaller, you can extract the data into a new database, and then drop the original database. Space, even in the cloud is really cheap. So Really, How Do I Shrink My Azure SQL Database? So it can be days or weeks before you can reclaim your space, if ever. In Azure SQL this is even more complex, because the ghost cleanup process, which cleans up unused dirty pages can take a long time to run. So you should basically never run it.ĭisk space is mostly cheap, so unless you are extremely storage constrained you should just live with empty space. Besides that SHRINK will fragment your data massively. In that case SHRINK may never complete–especially if you used LOB data types. The second one is much harder and depends on your data types and how busy your server is. The first one is easy–since SQL Server never wrote data to those pages, SHRINKDB will quickly reallocate them.
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You were creating a database file and you accidentally added an extra zero to the size field.In an on-premises world, shrinking data files should come down to two scenarios: Microsoft takes care of that for you: ‘Unlike data files, Azure SQL Database automatically shrinks log files since that operation does not impact database performance.’ But, anyway, we’re talking about Azure SQL Database, so you don’t need to worry about your transaction log file. That’s because that is probably roughly (this is a really rough rule of thumb) how big your transaction log needs to be. You will note that I didn’t mention that “your log file grew because of a large index rebuild”. You couldn’t write to a replication target for a while and your log file grew.You couldn’t write to an availability group secondary for a while and your log file grew.Your log backups failed for a while and the log file grew.If you use DBCC SHRINKDATABASE, you may have to restart SQL Server.
Mysql shrink database free#
This is the desired percentage of free space left in the database file after the database is shrunk. DBCC SHRINKDATABASE receives the parameter targetpercent. While many DBAs will never ever want to shrink a data file, sometimes your transaction log file can grow for external reasons. Use the DBCC SHRINKDATABASE command to shrink the tempdb database. However data size in the cloud means costs, so space management can matter, right? Photo by Pixabay on In 2021, we have hyperscale that allows us to have an Azure SQL Database of up to 100 TB (or more) in size. In the early days of Azure SQL Database (ne SQL Azure) we had size limits that were minuscule–I vaguely remember 5 and 10 GB, but it could have been smaller.
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