1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | SELECT cat_id, cat_nm, prnt_cat_id , CASE WHEN LEVEL >= LEAD( LEVEL , 1, LEVEL ) OVER( ORDER BY ROWNUM) THEN 'N' ELSE 'Y' END is_leaf FROM ( SELECT cat_id, cat_nm, prnt_cat_id FROM tblps_category_info WHERE work_no = '201206000176' AND work_rev_no = '1' AND gosi_no = '2012-905' ) WHERE prnt_cat_id = 0 START WITH prnt_cat_id = 0 CONNECT BY PRIOR cat_id = prnt_cat_id ORDER BY cat_nm ; |