| db$ | dBase Temporary Data |
| db- | Norton Utilities Nprotect Database |
| db-shm | SQLite Database Shared Memory |
| db-wal | SQLite Database Write-Ahead Log |
| db1 | Tekla Structures Model |
| db2 | Tekla Numbering Database |
| db2 | dBASE II Database |
| db2ind | Microsoft Visual Studio DB2 Index Data |
| db3 | Berkeley DB3 Database |
| db3-wal | SQLite 3 Write-Ahead Log |
| db4 | dBASE IV Database |
| dba | Steinberg WaveLab Audio Database |
| dban | DBAN Data |
| dbas | AQUA Database |
| dbat | Intuit Quicken for Mac DBAT Data |
| dbb | Skype Binary Log File |
| dbc | DAZ Studio Brick Camera |
| dbc | Microsoft Visual FoxPro Database |
| dbdif | DatabaseSpy Comparison Data |
| dbe | ActiveSync Backup |
| dbg | SOBEK Debug Data |
| dbg | Altair FEKO UTD Debug Data |
| dbgconf | Keil ULINK2 Debug Configuration Data |
| dbheader | Download Boost Header Data |
| dbi | Treepad Database DBI Data |
| dbin | ACDSee Pro Database |
| dbits | XYplorer Hash Data |
| dbk | Treepad Database Backup |
| dbk | dBASE Database Backup |
| dbl | CSD DBL Database |
