Getting strange error with connect by clause

Question

Hi Everyone,
I have a 2 test oracle databases and each of them contain a table called department (dept_no,dept_name, main_dept_no) where each department entry is connected to main department by dept_no in the MAIN_DEPT_NO column.
The strange problem is when I execute the query on the 1 ^st^ database I get D.DEPT_NO is not available column (D.* all columns from department table) but it is there and what is more strange this query works fine on 2 ^nd^ database.
Is there any settings I have to do in the database so that it can work with connect by clause ?
SELECT SUBSTR(LPAD(' ', 4*(LEVEL))  || '· ' ||DEPT_NAME,1,50)  DEPT_NAME_HY, D.*
FROM PERSONEL.DEPARTMENT D
START WITH MAIN_DEPT_NO IS NULL
CONNECT BY PRIOR DEPT_NO=MAIN_DEPT_NOThank you.

Answer 1

SSU wrote:
Hi Everyone,
I have a 2 test oracle databases and each of them contain a table called department (dept_no,dept_name, main_dept_no) where each department entry is connected to main department by dept_no in the MAIN_DEPT_NO column. Did you mean two SCHEMAs or tow databases?
Please post DB version.
The exact error message you are getting.
output of the below from the DB rom where you are getting the error
DESC PERSONEL.DEPARTMENT