Sql restore files and filegroups

Dropping and recreating the clustered index on a large table is not something you do lightly. The table is going to be locked and unavailable for the duration. In an ideal world, we would have planned and implemented our Filegroups before inserting any data into the affected tables. If we try and query any of the objects that reside in a Filegroup that we did not restore, we receive the following error:.

The definition of those tables still exists within the metadata of our database. Therefore, any attempt to create the table again will throw an error. We can then create our missing table in the Primary Filegroup, and even insert some data if required. Last Name. Email Address. All rights reserved. Company Reg. Shaun Austin May 6, am No Comments. Improve this answer. Scottie Scottie Your spot on with the first paragraph.

There is a subset of our filegroup with critical files which we would like to restore as soon as possible. We could split this into a separate filegroup, but that would require us to be able to backup only part of our database and ignore the less critical filegroup.

I think it really comes down to knowing if we can backup only part of the database. We have considered splitting into 2 separate databases.

This would work, but we would like to use this as a last choice because it would require a custom job to move files into the less-critical database once the files are deemed less-critical. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Making Agile work for data science. Stack Gives Back Featured on Meta.

Transaction log files are not part of filegroups. Data files, well, they contain the data. They are the physical representation of a filegroup and each filegroup must have at least one file. They can, however, have more than one file. Now, you may be wondering, if I have two files in my filegroup but I want to put a table into just one of those files, how do I do it?

The answer is: Use a second filegroup. The data is stored in the files of a filegroup using a proportional fill. Meaning that SQL will write the data based on how much free space is available in each of the files.

If you want to read about this subject in far more detail here is the BOL page for Files and Filegroups. When the data need to be spread to all data files, for example if is a row that is inserted, the row will be spread across to all data files or one datafile only? You are commenting using your WordPress.

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