Recipe 6.10. Creating a Delimited List from Table Rows
SELECT LPAD(' ', 1*level-1)||SYS_CONNECT_BY_PATH(ename, '/') "Path"
FROM emp
START WITH ename = 'SCOTT'
CONNECT BY PRIOR empno = mgr;
FROM emp
START WITH ename = 'SCOTT'
CONNECT BY PRIOR empno = mgr;
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