What is MDF and LDF file?

What is the purpose of an LDF file?

The LDF file is the transaction log that allows you to perform “point in time” restores if you have system failures. The way it works is that you can restore from your last full backup and “replay” the transactions from the transaction log file.

What is MDF file used for?

mdf extension is a Master Database File used by Microsoft SQL Server to store user data. It is of prime importance as all the data is stored in this file. The MDF file stores users data in relational databases in the form columns, rows, fields, indexes, views, and tables.

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.

What is the difference between log file and MDF file?

LDF vs MDF A log database file, or LDF, is essentially a log file that contains transaction details in a server. This database is typically used as a backup file. MDF is a component of MSSQL files that generates a database to store data such as account information, personnel information, and market trends.