I'm using
PL/SQL Developer Version 13.0.0.1883 (64 bit)
OCI: version 12.1 (12.1.0.2.0)
Oracle Database 12c Standard Edition Release 12.1.0.2.0
In the database, the "compatible" initialization parameter has the value "12.1.0.2.0".
Every time I run "View", "Describe", "Query data", etc. on a...