Question: 1. Explain what Two Phase Commit is used for, and describe the steps in each phase. You must be detailed. 2. IBM's UDB (Universal Data

1. Explain what Two Phase Commit is used for, and describe the steps in each phase. You must be detailed.

2. IBM's UDB (Universal Data Base) product has a feature called DPF (Database Partitioning Feature) Research it, and then explain how it relates to the Fragmentation discussion in Chapter 12.

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