select * from t_s_da_sec_var r start with c_da_code='FZ_FZ' connect by nocycle prior r.c_da_code_p=r.c_da_code
;select * from t_s_da_sec_var r start with c_da_code_p='[root]' connect by nocycle prior r.c_da_code=r.c_da_code_p
