What is the use of filegroups in SQL Server?
Filegroups use a proportional fill strategy across all the files within each filegroup. As data is written to the filegroup, the SQL Server Database Engine writes an amount proportional to the free space in the file to each file within the filegroup, instead of writing all the data to the first file until full.
What are adhoc queries?
An ad hoc query is a single query not included in a stored procedure and not parameterized or prepared. Depending on the server settings, SQL Server can parameterize some statements initially written as ad hoc queries. Ad hoc doesn’t mean dynamic.
Which is the best part of read only filegroups?
The best part of Read_Only filegroups is that, we get an flexibility to lock just a part of database files when compared to marking the whole database. As I wrap up this blog, I would want to know how many of us out there have used Read_Only filegroups in our environments. What are those scenarios you made these changes?
Can a read only filegroup cause faster query performance?
“No locking occurs in read-only databases. This can cause faster query performance “. This is incorrect unless the entire database is read only. A read-only filegroup alone does not allow shared locks to be skipped. Thanks for contributing an answer to Database Administrators Stack Exchange!
Can a filegroup be marked as readonly in SQL?
As you can see, the Read_Only Filegroups are functioning just like our ReadOnly Databases which have been explained in our previous blogs. The best part of Read_Only filegroups is that, we get an flexibility to lock just a part of database files when compared to marking the whole database.
Can you change the readonly property of a filegroup?
Cannot change the READONLY property of the PRIMARY filegroup. We will be presented with the above errors. Now, let us mark the other Filegroup next. The filegroup property ‘READ_ONLY’ has been set. Once this succeeds, we cannot do anything with the filegroup.
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