This document compares the scalability, performance, partitioning, availability, and manageability of IBM DB2 and Oracle databases. It discusses that IBM DB2 can scale to 512 TB of data in a traditional cluster, while Oracle allows for unlimited scaling in a Real Application Cluster across geographically dispersed nodes. For performance, it shows that IBM DB2 outperforms Oracle on TPC-C and TPC-H benchmarks at large scale factors of 3000GB, 10000GB, and 30000GB, though Oracle holds the world record at 30000GB. It also outlines advantages and disadvantages of data partitioning for performance. For availability, it notes that Oracle allows for hot plugging of nodes and warm cache failover, while IBM DB2