Tag: IBM

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Tuning Federated Queries

(Howard Goldberg) Most DBAs know the tasks required to identify, measure, and implement changes that will improve a poorly performing SQL query. For federated queries, a DBA must learn new skills and broaden the typical query-tuning task list to deal with new functions provided by DB2 Information In

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Good Migrations

(Jeanne Kays and Roger Miller) DB2 Universal Database Version 8 (DB2 UDB V8) for z/OS offers significant opportunities for improvement in six key areas without a lot of added effort. They are: –High availability –Scalability and benefits for very large databases –Increased productivity of J