What is the difference between file and filegroup in SQL Server?

What is file and filegroup in SQL Server?

This is where Filegroups come into play in SQL Server. 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.

What is .mdf and .NDF files?

NDF is secondary storage file because SQL server stores user specified data in primary storage file known as MDF. NDF data file is optional and is user-defined to manage data storage in case the primary MDF file uses all the allocated space.

What is data file and log file in SQL Server?

Solution. Every SQL Server database has at least two operating system files: a data file and a log file. Data files can be of two types: Primary or Secondary. The Primary data file contains startup information for the database and points to other files in the database.

What are files in SQL?

What is an SQL file? A file with . sql extension is a Structured Query Language (SQL) file that contains code to work with relational databases. It is used to write SQL statements for CRUD (Create, Read, Update, and Delete) operations on databases.