stored in an AutoCAD Electrical project. If the scratch database file is missing
or corrupted, it is automatically generated from the project's drawing set. The
project's scratch database file can be used to write back to text data carried on
symbols on the drawings. With some care (described below), you can edit the
database directly and then import the information back to the drawings.
The file name is <project>.mdb where <project> matches the current project's
.wdp file name.
Access:
Click Projects
➤
Export to Spreadsheet
➤
Update from Project Scratch
Database.
Select the database table to update then select the drawings to process. Any
changes are written back to the appropriate objects. Alternately, save the
scratch database file with a new name, edit, and then reference this file when
the command starts.
Cautionary Note
AutoCAD Electrical 2006 and later introduced an automatic scratch database
"freshen" function, Project Database Service (PDS), which complicates use of
this command over previous versions of AutoCAD Electrical. The PDS
automatically updates the scratch project database without your intervention
(and without your knowledge). If you edit the scratch database with all of the
changes you want to write back to your project set, there is a chance that the
PDS will come in, without warning, and remove all of these edits (to match
the current state of the unmodified dwgs) before you have a chance to run
the command to update the drawings.
Even if you are careful not to update the drawings while doing the mdb edit
(so that the PDS will not update anything), you can still lose all your edits
when you launch the Update from Project Scratch Database command. This
is because the command, just before it begins the update, may ask you if it is
OK to Qsave the active drawing. If you select OK, then the PDS sees a change
and updates the database (for example, erases changes for current drawing),
just as the command is getting ready to process.
To prevent this, do not update the drawings while editing the scratch database
file and answer "NO" to the Qsave prompt when invoking the actual update
command.
Project database table data -- project drawing files update | 87
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