connect by 的排序問題

order SIBLINGS by

這個關鍵字來排序

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SQL> desc sys_menu;
Name Type Nullable Default Comments
-------- -------------- -------- ------- ----------------------------
ID NUMBER(8)
NAME VARCHAR2(50) Y
MEMO VARCHAR2(512) Y
MENUTYPE NUMBER(2) Y
PARENTID NUMBER(8) Y '0'
FULLPATH VARCHAR2(50) Y
URL VARCHAR2(2048) Y
SEQNUM NUMBER(8,2) Y 5
TARGET VARCHAR2(50) Y 'main'
CLICK NUMBER(8) Y 0
VIEWMODE NUMBER(8) Y 0 0 圖示 1 樹形

遞迴返回的值，按seqnum的逆序排序：

select sys_connect_by_path(lpad( parentid,5,'0'),'P') path ,t.id,t.parentid,t.name,t.seqnum
from sys_menu t
start with parentid=0
connect by prior id = parentid
order SIBLINGS by seqnum desc,id