标签：
SELECT substr(sys_connect_by_path(dutywork, ';'), 2)
FROM (select dutywork,rownum rn
from t_test)
WHERE connect_by_isleaf = 1
START WITH rn = 1
CONNECT BY prior rn = rn - 1;标签：
原文地址：http://blog.csdn.net/helloboat/article/details/44175423
