The future of database administrator (DBA) jobs is changing as managed services like AWS RDS automate traditional DBA tasks, but expert domain knowledge remains crucial for performance.
An in-house DBA's understanding of the business domain allows for effective performance improvements without incurring additional costs, using tuning and optimization techniques.
By leveraging domain expertise, DBAs can achieve significant performance enhancements through intelligent configuration changes and SQL query tuning, rather than relying solely on hardware upgrades.
To maintain optimal database performance, a DBA must balance costs carefully, prioritizing fine-tuning configurations and understanding workloads before considering further financial investments.
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