Oracle：使用另一個子查詢的結果

Question

select t1Joint2.c1,t1Joint3.c3 from 
(select * from table1 where name = "some") t1, 
(select t1.c1,t2.c2 from table2 t2 where t1.c1 = t2.c2) t1Joint2, 
(select t1.c1,t3.c3 from table3 t3 where t1.c1 = t3.c3) t1Joint3, 
; 

以上查詢在Oracle中不起作用。
任何解決方法？

使用Oracle 11g。

Answer 1

with t1 as 
    (select * from table1 where name = 'some') 
, t1Joint2 as 
    (select t1.c1,t2.c2 from t1, table2 t2 where t1.c1 = t2.c2) 
, t1Joint3 as 
    (select t1.c1, t3.c3 from t1, table3 t3 where t1.c1 = t3.c3) 
select t1Joint2.c1,t1Joint3.c3 
from t1Joint2, t1Joint3 
; 

Answer 2

爲什麼不把它寫成：

select t1.c1, t3.c3 
from table1 t1 
join table2 t2 on t1.c1 = t2.c2 
join table3 t3 on t1.c1 = t3.c3 
where name = "some"