I'm getting this error:
ORA-01950: no privileges on tablespace 'USERS'
I have a default tablespace and I'm able to create tables, however, they do not show at the objects tab in Toad. I cannot insert anything into tables I create.
You cannot insert data because you have a quota of 0 on the tablespace. To fix this, run
ALTER USER <user> quota unlimited on <tablespace name>;
or
ALTER USER <user> quota 100M on <tablespace name>;
as a DBA user (depending on how much space you need / want to grant).