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  • PowerCenter 10.5.8
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  1. Appendix A: Glossary

Glossary

Glossary

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cost-based optimization

cost-based optimization

Optimization method that reduces the run time for mappings that perform join operations. With cost-based optimization, the Data Integration Service creates different plans to run a mapping and calculates a cost for each plan. The Data Integration Service runs the plan with the smallest cost. The Data Integration Service calculates cost based on database statistics, I/O, CPU, network, and memory.
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