What are SQL Server file groups?

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Filegroups are the physical files on your disc volumes that hold SQL Server's data and can be used for backup and administrative management purposes. The first thing to know are what types of files SQL Server uses: Primary Data Files. Secondary Data Files. Log Files. 17 янв. 2017 г.

What are the types of files in SQL Server?

A SQL Server database has three types of files:Primary Data File OR MDF File.Secondary data file OR NDF File.Log File OR LOG File.Different methods to attach SQL Server MDF files - SQLShack

What is secondary file group in SQL Server?

A secondary filegroup (also called a user-defined filegroup) contains secondary datafiles (ndf) and database objects. The default filegroup contains objects which were created without an assigned filegroup. The primary filegroup is the default filegroup unless another filegroup is specified.

What is difference between file and filegroup in SQL Server?

tl;dr; Filegroups are a logical construct used to separate tables and indexes from each other, files are the physical construct used to store information (log & data) about the database.

What is MDF NDF and LDF in SQL Server?

A Microsoft SQL database consists a primary data file (mdf) a secondary data file (ndf) and a transaction log file (ldf).

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