WORKAROUND:
strSQL:= 'CREATE TABLE TestORA06550(Field1 VARCHAR2(10),
Field2 NUMBER(10))';
EXECUTE IMMEDIATE strSQL;
Replace with
strSQL:= 'CREATE TABLE TestORA06550(Field1 VARCHAR2(10),' ||
'Field2 NUMBER(10))';
EXECUTE IMMEDIATE strSQL;
STATUS:
Waiting for fix in future release of SQL Navigator.