Rownum and last inserted row !!!!!!!!!!!!

hi everybody,
I am at present using oracle 8i Release 2. According to my knowledge and "Oracle 8 complete reference", when we use ROWNUM, the rownum is decided when the data is selected from the database. So when we use "order by" clause actually the rownum gets jumbled up.
But to my surprise when i did something like this on my SQl prompt row num is acting very "innocent" :)
<Code>
1* select rownum, empno from emp
SQL> /
ROWNUM EMPNO
1 7369
2 7499
3 7521
4 7566
5 7654
6 7698
7 7782
8 7788
9 7839
10 7844
11 7876
12 7900
13 7902
14 7934
15 1
15 rows selected.
SQL> select rownum, empno from emp order by empno;
ROWNUM EMPNO
1 1
2 7369
3 7499
4 7521
5 7566
6 7654
7 7698
8 7782
9 7788
10 7839
11 7844
12 7876
13 7900
14 7902
15 7934
15 rows selected.
</Code>
As you can see rownum is ordered again .. m i missing something.
B)
Is it possible to get a row that was inserted last. Does oracle guarantee that data retrieval will be according to the time of inssertion !!
Thanx in advance
Chetan

Rownum is decided afeter the complete execution of ur SQL statment (it includes ordey by, group by, where etc.).
you can get the last inserted row using:
select * from emp where rowid=
(select max(rowid) from emp);
Regards
Riaz

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Hi,
I want to select only the last inserted row in a
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user13310594 wrote:
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*****************************************code***************************************************************
<< Please post only the relevant portion of the code >>
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Rownum and last inserted row !!!!!!!!!!!!

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