Storing and Organization of Individual Drawing Files (.SDB files)
- Last UpdatedNov 27, 2025
- 1 minute read
The individual files (.SDB files) with drawing information are stored in subfolders under the folder named <project name>drg.
Every time you store the drawing a new version of the .SDB file will be saved. By default previous versions will be deleted. This behavior can be changed by setting the default keyword KEEP_SESSION_FILES to YES. It should be noted that keeping all session files will make it possible to do DABACON operations like, for example 'roll back', but can on the other hand bloat your file system.
Removing obsolete SDB files can be done either as part of the Admin merge session command (see MERGE CHANGES in the Administration Command Reference Guide) or via a PML macro (see the Remove Obsolete .SDB Files Appendix).