Research on Oracle 10G Database Performance OptimizationGUO Min,GUO Jing(Network Information Center,Wuhan University of Technology,Wuhan 430070,China)Database performance optimization influences the effective operation of the entire database application directly.This paper discussed the policy and method of oracle database performance optimization,and updated features for performance optimization in Oracle 10G,such as the Automatic Database Diagnostic Monitor(ADDM),application end to end tracing,automatic optimizer statistics collection and automatic shared memory management.How to use these new features to tune Oracle 10G database was studied.These rationally utilized new features may bring much actual effect in 10G database performance optimization and tuning process.Oracle 10G;performance optimization;ADDM