Abstract
The magnitude of data in the concurrent databases is exponentially escalating with respect to time. This advent conveys a challenge to the database administrators and SQL developers in the arena of performance, due to incessant data accumulation and manipulation. As such, this paper proposes an approach to overcome these befalling sundry wait events in the internal database engine through Query and PL/SQL rewrite methodologies, and additional overhauling approaches to increase the data hit ratio. Our experimental progression and approaches evinced that CPU impact, wait events and other performance bottlenecks are minimized. This paper could serve as tuning tool to boost query as well as database performance by wait event tuning and can also oblige as a utility for database administrators, SQL programmers, database managers and database operators.
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