Hello
ONE SDF per Layer so you will have many SDF files ...
Or maybe you could use SQLite with many Layers inside ! and you will have only ONE SQLite file ...
Or maybe a few SQLite file for each type of layers
- cadastral layers
- sewer layers
- water layers
- energy layers
- etc
SDF and SQLite are very fast ...
Bye, Pat
Patrice ( Supporting Troops ) - Autodesk Expert Elite
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Patrice BRAUD