Administer and maintain IBM DB2 databases on z/OS platforms, ensuring high availability, performance, and operational stability of business-critical applications.
Perform database performance monitoring and tuning activities, including SQL optimization, access path analysis, buffer pool tuning, tablespace management, RUNSTATS, REORG, COPY, and other DB2 utility operations.
Review, analyse, and optimise complex SQL statements developed by application teams to improve query efficiency, reduce resource consumption, and meet performance service levels.
Design and implement database objects including tablespaces, databases, tables, indexes, views, aliases, and referential integrity structures to support application development and enhancement initiatives.
Troubleshoot and resolve database-related incidents involving SQLCODE errors, locking and concurrency issues, deadlocks, database object failures, storage constr...
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