Folks Need to get=A0the difference records between 2 tables each of size 22GB = (each containing 32 Million rows). The temp tablespace is 30GB. What would be the fastest/most efficient way? =A0 Machine configuration - 4 cpu's and 1GB DIMM RAM.=20 OS version - Unix Sun Solaris machine Version not known. Oracle version -=A0 8.1 Nature of application -=A0Joins and inserts production issue -=A0 Yes Tables being accessed by other applications - YES, during certain time = slot. We have abt 12-14hrs when they are not touched by any application. =A0 Thanks -- //www.freelists.org/webpage/oracle-l