| File Type |
SQL Server Secondary Database File |
| File Format |
File |
| Common? |
No |
| File Description |
Secondary database file used by Microsoft SQL Server; created when the primary .MDF database becomes too large (such as when there is no disk space left); may also be manually added to the SQL Server File Group to distribute data between the two files.
NDF files are typically stored on a different hard disk or partition than the primary database file; each NDF file uses the same filename as the corresponding MDF file, such as "mydb.mdf" and "mydb.ndf." |
| Program(s) that open ndf files |
Windows: Microsoft SQL Server |