RE: Locally Managed Tablespace Uniform Extent

2001-04-03 Thread Connor McDonald
I think its to keep the extents identifiable within the segment header block - sort of in the same way that oracle used to do in the earlier versions (which limited the extents to 121, 249, 505 etc dependent on block size) hth connor --- Jacques Kilchoer <[EMAIL PROTECTED]> wrote: > > -Origi

RE: Locally Managed Tablespace Uniform Extent

2001-04-03 Thread Jacques Kilchoer
Title: RE: Locally Managed Tablespace Uniform Extent > -Original Message- > From: Miller, Jay [mailto:[EMAIL PROTECTED]] > > My understanding was that the main reason to keep the number > of extents down > was in case you needed to drop or truncate the table it wo

RE: Locally Managed Tablespace Uniform Extent

2001-04-03 Thread Miller, Jay
My understanding was that the main reason to keep the number of extents down was in case you needed to drop or truncate the table it would take Oracle a long time to clean up the fet$ table. I think, and I emphasize that I am not certain of this, that this is no longer a problem with locally manag

Re: Locally Managed Tablespace Uniform Extent

2001-03-15 Thread Connor McDonald
The advice on Metalink is sound in the sense that using a finite number of extent sizes is a good thing, but (imho) the choice of sizes for extents is largely up to you (a point that the article doesn't really convey). The key with the uniform extent is avoiding fragmentation issues; combine that

RE: Locally Managed Tablespace Uniform Extent

2001-03-14 Thread Jack C. Applewhite
Jim, I'm probably a bit extreme here, but, with all due respect to Steve Adams (because I really do), I wouldn't worry terribly much about numbers of extents. Our 8.1.6 production db on Win2k has 8KB block size and uniform extent size of 1MB in all tablespaces. Our largest segment stores the ou