I guess I should have added some criteria like:
1) user_objects must have enough rows in it to cover the range (if not
consider some other table)
2) this will work fine up to a few thousand records (depending on the size
of your sever, etc) - it would work, but isn't ideal, when you move into
the millions of records range.
3) I guess a "where not exists (select 1 from table where linenbr =
therow)" type subquery could be written to reduce the sort size, but I
doubt performance would be much better.
Regards,
Mark.
"Mark Richard"
<[EMAIL PROTECTED] To: Multiple recipients of list
ORACLE-L <[EMAIL PROTECTED]>
ban.com.au> cc:
Sent by: Subject: Re: SQL help needed
[EMAIL PROTECTED]
.com
17/09/2003 13:39
Please respond to
ORACLE-L
Easy....
select rownum+minlinenbr-1 from user_objects where rownum <=
maxlinenbr-minlinenbr
minus
select linenbr from table
Replace the words with bind variables or whatever is appropriate for your
application. Oh, and be sure to test it for accuracy - I'm typing without
testing and could be "out by one" on some of the maths.
Regards,
Mark.
Kirtikumar Deshpande
<kirtikumar_deshpande To: Multiple
recipients of list ORACLE-L <[EMAIL PROTECTED]>
@yahoo.com> cc:
Sent by: Subject: SQL help
needed
[EMAIL PROTECTED]
17/09/2003 13:29
Please respond to
ORACLE-L
Hello Listers,
I need some SQL help.
Not sure if this is possible in plain SQL or not, but here it is:
I have a table with two columns:
EMPNBR LINENBR
------ -------
100 1
200 4
300 8
400 9
500 14
How would I find out the missing linenbrs (2,3,5,6,7) if I was given
minlinenbr as 1 and
maxlinenbr as 10 that would be passed as variables (using &).
Thanks.
- Kirti
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