-add a bit clarity to examples.py and remove creating a new local db …

…for each different example

examples/examples.py

@@ -101,11 +101,16 @@
     - local_db: without database and grafana
     - timescale: with database and grafana (note: you need docker installed)
     """
+
+    # select to store the simulation results in a local database or in timescale
+    # when using timescale, you need to have docker installed and can access the grafana dashboard
     data_format = "local_db"  # "local_db" or "timescale"
+
+    # select the example to run from the available examples above
     example = "small"
 
     if data_format == "local_db":
-        db_uri = f"sqlite:///./examples/local_db/assume_db_{example}.db"
+        db_uri = "sqlite:///./examples/local_db/assume_db.db"
     elif data_format == "timescale":
         db_uri = "postgresql://assume:assume@localhost:5432/assume"