I would say a properly sized LMT is better than a poorly managed DMT, and
vice versa.
"Richard Foote" <richard.foote_at_bigpond.com> wrote in message
news:8iP_9.38221$jM5.96585_at_newsfeeds.bigpond.com...
> "vbaskar" <member24112_at_dbforums.com> wrote in message
> news:2468993.1044093627_at_dbforums.com...
> >
> > What is the difference between LMT and DMT ?
> >
> > Which one is better ?
> >
> > and in 9i I COULD see everything as LMT only ? Why
> >
> > Rgds
> >
>
> Hi There,
>
> A search of the google archives will give you a whole bunch of hits on
this
> subject.
>
> The Concepts and Administrator's manuals discusses this in some depth.
>
> Basically DMT store extent and free space info in the data dictionary
> causing possible performance issues and stress on the dd, and extents can
be
> of any size causing possible fragmentation problems.
>
> LMT store extent info in a number of bitmap blocks within the datafiles
> themselves resulting in a stress free dd, faster allocation/deallocation
of
> extents and can be configured with a uniform extent size resulting in no
> fragmentation issues.
>
> LMT is better.
>
> Cheers
>
> Richard
>
>
>
Received on Sat Feb 01 2003 - 13:11:40 CST
