I need to know if the "Backup Database Task" in MS SQL Management Studio, maintenance plans, takes the free space into account or that it only backsup the data part.
For e.g. if the db size is 100 MB where 60Mb is data and 40Mb is free space. Will take the backup of the whole db of size 100 or that it will take backup of the 60Mb data.
I couldn't find this info on MS site.
MOVED TO:
Microsoft Sql Server Managment studio backup size goes negative
Backing up the database will only backup the actual data not the free space.
Not sure why you have mentioned "Create Database Task" though?
Related
I've got a database on SQL Server 2008 R2 that has grown to 10GB (log file is tiny). Users cannot work because they get the message about not being able to allocate space, filegroup PRIMARY being full.
Database is in simple mode, the .mdf file is set to unlimited growth, the initial size says 10240MB and when I change it trough the manager it just goes back up.
Naturally shrinking trough Manager or T-SQL DBCC SHRINKFILE or SHRINKDATABASE does not work because of that (IIRC, shrink cannot go below minimal size).
What are my options now?
Create a new filegroup?
Why can't I reduce initial size?
SEE IMAGE
I have a database of approximately 70GB in size residing on SQL Server 2016 Enterprise on an Azure VM. We decided to move this to an Azure SQL Database.
I accomplished the move via the "Deploy to Azure SQL Database" (right-click on the database and it's under Tasks). This wizard seemed very complete and ran a battery of tests, followed by doing the deployment step-by-very-detailed-step. The full process took about 3 hours, but it finished with all steps marked as success.
The issue is the size of the resulting Azure SQL database is only showing as 31GB?? Is this possible? Is there a possibility that there were 40gb worth of extraneous/temporary/unneeded data that the transition process recognized as unnecessary? As you can imagine, I'm very hesitant to take down the original database and start using the new one given this difference in size.
It could be that you had fragmented indexes and moving them from one place to another allowed for a rebuild eliminating wasted space. It could be that you just had a database that was set to 70gb but only had 31gb of data. The size of your backups should give you an indication of the actual size of the data in your system. Run counts on the tables to ensure that both data sets match.
The size of the data files seen from the operating system is not a good indication of the size of the data they content. Connect with SSMS to the SQL Server instance in your Azure VM, make a right click on the database, make a click on Taks, now select Shrink, then select Files. Look at the "Currently allocated space" and the "Available free space" of the Data file. From the "File type" choose "Log" and that should give the allocated size and the free space of the log also.
We are looking at migrating one of our databases from SQL Server 2008 Express to SQL Server 2012. The guy that has been taking care of the database says he always does a detach, copy the files to the new server and attach. This takes the database offline of course.
Is there a benefit in doing that vs. right click backup, copy backup files and right click restore on the new server?
Taking a backup should pull everything without taking the DB offline correct?
Is there a recommended best practice for this?
(New to the MS database world)
You could Backup and Restore
You will still have to "un-orphan" sql-users to db-users.
BACKUP DATABASE MyDB TO DISK = 'c:\backups\MyDB.bak' WITH FORMAT
RESTORE DATABASE MyDB FROM DISK = 'c:\backups\MyDB.bak' WITH REPLACE,
MOVE 'MyDB' TO 'd:\sqlfiles\mydb.mdf',
MOVE 'MyDB_Log' TO 'd:\sqlfiles\mydb_log.ldf'
Change the paths however you want.
I'm not sure about best practice, but I have done this more times than I can remember and never had an issue by backing up the DB, taking the old DB offline, and restoring the backup to the new server.
I guess on really high traffic systems you may want to take the DB offline first to ensure nothing changes during your backing up (new records added etc. which would be lost). If you take the DB offline first then you can't back up the DB, so I guess that's when attaching the individual files to the new server becomes necessary as opposed to just restoring the backup.
I have a historical DB in SQL Server that is 7 to 8 years old. How can I find at what rate it has grown annually since 2007 using a SQL query or steps in SQL Server Management Studio
Look at your regularly scheduled FULL backup sizes in the MSDB Backup History and Header tables.
In particular, backupset and backupfile may be of interest.
Alternately, look at the actual size of the actual full backup files (not differential or T-log, just the fulls). You can use RESTORE HEADERONLY to get further information.
I have been using SQL CE as my database system, but for further functionality I am now switching to SQL Express. While running the first test, I found that the SQL Express 2005 database reached 4GB within one day, whereas a SQL CE database with similar size of data is only around 1GB.
I later tested in another system with SQL Express 2008, where the database size was still bigger than the CE version, but not as much as the above.
I tried shrinking database using SQL Management Studio, but it only reduced from 4096mb to 4095.55mb. I have learned that SQL Express databases requires extra space for performing its operations, but I don't think that should be 4 times and in one day. What should I look for?
Check the the minimum size you specified when you create your databases.Check your database growth settings etc.minimum size of a database is specified when the database was originally created, or the last 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 4GB and grew to 4.1 GB, the smallest size the database could be reduced to is 4GB, even if all the data in the database has been deleted.