The database is growing and shrinking because of how it tracks design changes. This is normal.
Try changing to Single Document Interface mode (SDI=1) and see if data tracking improves. This is how the software worked when it was invented, in the 1990s. I never saw a crash of the database, or any other database issues, in the early versions. Autodesk changed it in release 2006, allowing more than one drawing to be open simultaneously. Imagine how hard the data manager must work when you have multiple drawings open and you are making changes that haven't yet been saved.
The default setting with a new installation is SDI=0. Close all but one drawing and type SDI at the command prompt. Press enter on your keyboard. Type 1 and press enter. The software will now only allow one drawing per user to be open at a time. This is very popular among those who are working on the same project together. I meet CAD administrators who set the software up this way with each install.
Note: There are special commands that require Multiple Document Interface, or SDI set to 0. The software will alert you if it needs Multiple Document Interface turned on.
I should point out that the reason the database can get out of sync is because of one major advantage AutoCAD Electrical has. The drawing data is stored in the drawings. Database-driven programs store drawing data in the project database. If the database becomes corrupt, you can lose some or all data related to a project, or even multiple projects. You then have to create the drawings all over again, or replace what is missing.
AutoCAD Electrical is driven from the drawing side. That is why the project database is called a project scratch database. You could delete the project scratch database and the software will create a new one by re-reading the drawing data. This robust approach helps protect your project from database anomalies. That's why you read about people deleting the project scratch database from time to time and letting the software create a fresh one by re-reading the drawings. You see, the database simply records your edits and uses this information to expedite internal operations. Reports get their data from the project scratch database rather than waiting on the software to open and read every drawing in real time. This is why you see some of us recommending that you rebuild the database prior to generating reports or exporting to a spreadsheet for editing. Hint: Service Pack 1 of release 2016 automatically updates the database prior to exporting to a spreadsheet.
Doug McAlexander
Design Engineer/Consultant/Instructor/Mentor
Specializing in AutoCAD Electrical Implementation Support
Phone: (770) 841-8009
www.linkedin.com/in/doug-mcalexander-1a77623
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