Database Design: Oracle
When designing database layouts for shared Oracle Parallel Server databases, remember that accessing globally shared data from multiple nodes increases transaction processing costs. In other words, multi-node transactions incur more wait time and higher CPU consumption than transactions processed on single-node systems. Because of this, carefully consider the database access characteristics of your applications you can create scalable database designs. In general, you can achieve scalable systems by: Assigning transactions with similar data access characteristics to specific nodes Creating data objects with parameters that enable more efficient access when globally shared