SELECT各关键字解析执行顺序

例

select ID,OyaID,Level, 
sys_connect_by_path(to_char(ID),',') as path 
  from edaKiri Join dual 
    on ID not in(3,22) 
start with OyaID is null 
connect by prior ID = OyaID --亲子条件

order by ID;

1. from句
2. where句 (结合条件)
3. start with句
4. connect by句
5. where句 (行的过滤条件，亲子条件)
6. group by句
7. having句
8. model句
9. select句
10. union、minus、intersect等的集合运算
11. order by句