hi,Vinod Gopinath BMMI IS your sga is too large, you must reduce the sga for example : shared_pool_size = 300m ,increase the buffer cache ,total sga = 1.2G Best regards msn: biti_rainy@xxxxxxxxxxx a dba from alibaba(china) ---- from the mail----- Hello, I have oracle 8.1.6 on WinNT Patch 4 with 4 CPU's and 4 Gig ram. I feel I have tuned the db correctly. I am getting the error ERROR: ORA-04030: out of process memory when trying to allocate 4000012 bytes (session shared_pool_size = 1048556000 shared_pool_reserved_size = 104855600 # Earlier this was 8.1.5 compatible = 8.1.6 optimizer_index_caching = 20 optimizer_index_cost_adj = 90 Can some one help me. Its urgent. - Vin >-- >//www.freelists.org/webpage/oracle-l > >. -- //www.freelists.org/webpage/oracle-l