Connection by level: is there a difference between 10g and 9i?

Hello

When I run the following query
 Select level from dual connect by level <= 2 
using Oracle10g Release2 database, I have a set of two lines:
1
2
.
But when I run the same query by using Oracle 9i database, I have an a single row result set:
1
.
Please, help me understand why this difference?
Thank you.

Yes, there is. In the earlier versions as 9i, you must use see online:

select  *
  from  (
         select  level
           from  dual
           connect by level <= 2
        )
/

SY.

Tags: Database

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