Cause
LEVEL, PRIOR, ROWNUM, CONNECT_BY_ROOT, CONNECT_BY_ISLEAF or CONNECT_BY_ISCYCLE was specified at an illegal location.
Action
Remove LEVEL, PRIOR, ROWNUM, CONNECT_BY_ROOT, CONNECT_BY_ISLEAF or CONNECT_BY_ISCYCLE.
Oracle 26ai
ORA-00976
Error Message
Specified pseudocolumn or operator not allowed here.