Rollback Segments

hello, I am new to using ORACLE V7.0.15 and I have a question about rollback segments. I know that each transaction can only write to one rollback segment. I have a transaction that delete about 200 megs of information. I was wondering if there is any way to get around having a 200 meg rollback segment allocated (we don't want to waste so much space if we can help it).

Specifically - is it possible to commit portions of a large delete so that that part of the rollback segment info could become inactive and thus reuse the existing extents?

I would appreciate any information that you could give me.

Thanks, Jeanine Cohen

        SRA Corporation
        Fairfax, Virginia