What is MDF NDF and LDF in SQL Server?

What is difference between MDF and NDF?

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 the difference between LDF and MDF?

MDF is the primary data file for MSSQL. The LDF, on the other hand, is a supporting file and is characterized as a server transaction log file. 2. MDF contains all the vital and necessary information in databases while the LDF contains all the actions which include transactions and changes made in the MDF file.

What is NDF SQL Server?

An NDF file is a user defined secondary database file of Microsoft SQL Server with an extension . ndf, which store user data. Moreover, when the size of the database file growing automatically from its specified size, you can use . ndf file for extra storage and the . ndf file could be stored on a separate disk drive.

What is MDF file in SQL?

Primary data file OR MDF file mdf is a preferred extension of the primary database file. It is not a type of file. You can use another extension (*. gbn) to create a primary database file without any error. The primary data file contains columns, fields, rows, indexes, tables, and data added by an application.