In Oracle Database, temporary tablespaces play a critical role during SQL execution. Whenever a query involves sorting, joining, aggregation, index creation, or operations that cannot be handled entirely in memory (PGA), Oracle uses temporary tablespaces to store intermediate results. As a DBA, understanding how to monitor and troubleshoot temporary tablespace usage is essential to avoid […]
In high-throughput Oracle environments, cursor sharing is a pivotal lever for controlling hard parse overhead, shared pool pressure, and overall scalability. The central control is the initialization parameter CURSOR_SHARING: This article illustrates not just how cursor sharing behaves, but how to monitor it rigorously using Oracle’s dynamic performance views. 1) Environment and Safety First Run […]
In the silent architecture of the Oracle Database, every line of PL/SQL code carries weight. Performance issues arise not with a roar, but with a whisper—a process that once danced now stumbles, and somewhere deep in the code, time leaks away. As Oracle professionals, our calling is to seek out these shadows and bring them […]
Oracle Database performance tuning is a dance of insight and intuition, a symphony of numbers and narratives.In this blog, we unravel the Automatic Workload Repository (AWR) report, one of the DBA’s most powerful instruments for diagnosing bottlenecks, isolating pain points, and transforming sluggish systems into seamless symphonies. 1. What Is the AWR Report? The Automatic […]