Hierarchical query - CONNECT BY and result in different columns.

Question

Hi everyone,
I have a small question, hoping that someone can help me. As you will see, this
is not very important. It's just me wondering if I can learn something in SQL.
Let's suppose I have an ORGANIZATIONS table:
CREATE TABLE ORGANIZATIONS (
  ID_ORGANISATION NUMBER(10) PRIMARY KEY,
  NAME VARCHAR2(255) NOT NULL,
  ID_PARENT_ORGANIZATION NUMBER(10)
INSERT INTO ORGANIZATIONS(1, 'Parent of all', null);
INSERT INTO ORGANIZATIONS(11, 'Child 11', 1);
INSERT INTO ORGANIZATIONS(111, 'Child 111', 11);
INSERT INTO ORGANIZATIONS(112, 'Child 112', 12);
INSERT INTO ORGANIZATIONS(12, 'Child 12', 1);
INSERT INTO ORGANIZATIONS(121, 'Child 121', 12);Let's also assume that we can have an undefined number of levels.
Now, my question:
With a query like
SELECT LPAD(' ', LEVEL) || NAME  as conc
  FROM ORGANIZATIONS
START WITH ID_ORGANIZATION = 1
CONNECT BY PRIOR ID_ORGANISATION = ID_PARENT_ORGANIZATION
..I have a result like
[conc]
"Parent of all"
   "Child 11"
     "Child 111"
     "Child 112"
   "Child 12"
   ...All in one columns.
What I'd like is a result like this one:
[LEVEL_1]         [LEVEL_2]      [LEVEL_3]
"Parent of all"
                  "Child 11"
                                 "Child 111"
                                 "Child 112"
                  "Child 12"
                                 "Child 121"I'd like to have this structure for the 5 first levels. Do you think this is possible or not?
Thanks for your advice,

Answer 1

user13117585 wrote:
I'd like to have this structure for the 5 first levels. Do you think this is possible or not?Yes, something like...
SQL> ed
Wrote file afiedt.buf
  1  SELECT DECODE(LEVEL,1,NAME) as conc1
  2        ,DECODE(LEVEL,2,NAME) as conc2
  3        ,DECODE(LEVEL,3,NAME) as conc3
  4        ,DECODE(LEVEL,4,NAME) as conc4
  5        ,DECODE(LEVEL,5,NAME) as conc5
  6        ,DECODE(LEVEL,6,NAME) as conc6
  7  FROM ORGANIZATIONS
  8  START WITH ID_ORGANISATION = 1
  9* CONNECT BY PRIOR ID_ORGANISATION = ID_PARENT_ORGANIZATION
SQL> /
CONC1                CONC2                CONC3                CONC4                CONC5             CONC6
Parent of all
                     Child 11
                                          Child 111
                     Child 12
                                          Child 112
                                          Child 121
6 rows selected.
SQL>Just add levels as you need them.