All pools of cache (default, keep, recycle, nK) use absolutely the same algorithms. You can make one big KEEP pool and put big full-scaned tables in it and one small RECYCLE pool and put important/lookup tables in it. The name of the pool is just to explain it's idea. The behaviour (once a block is in the pool) is the same for all. -- Regards, Yavor Ivanov Senior Database Expert Stemo Ltd On Tue, 09 Jan 2007 22:26:22 +0200, Binh Pham <binhpham15@xxxxxxxxxxx> wrote: > If the KEEP pool is not large enough, whap happens to the blocks from objects > that are supposed to go to the KEEP pool when KEEP pool is full? Does Oracle > flush out existing blocks in the KEEP pool for the new blocks or the overflows > go to the DEFAULT pool? > > > Dave vs. Carl: The Insignificant Championship Series. Who will win? -- > //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l