1 echo select t1.f1
,t2.f1
,t3.f1 from t1
,t2
,t3 where t1.f2
=t2.f2 or t1.f1
> 100;
2 ---------------------------------------------------------
4 ---------------------------------------------------------
15 echo select t1.f1
, t2.f1
, t3.f1 from t1
,t2
,t3 where t1.f2
= t2.f2 and t1.f3
= t3.f2
;
16 ---------------------------------------------------------
18 ---------------------------------------------------------