What is MDF and IDF in SQL?

What is an MDF file SQL?

MDF stands for Main Database File and contains all the information in a database. LDF records all the transactions and changes to the database. The ldf is critical for disaster recovery.

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.

What are SQL MDF and LDF files?

MDF file is the primary file in SQL server database. The LDF is a supporting file. The latter stores the information related to transaction logs. MDF contains database record data. LDF, on the other hand records information related to changes made in the server as well as all the actions performed.

What is MDF LDF and NDF?

.mdf is extention of primary file, .ndf is extention of secondary file, .ldf is extention of log file, Krishna.