But the trace told a very different story. This was not caused by a user query doing a huge hash join, sort, bitmap operation, parallel query, or PL/SQL collection ...

At TYMIQ, we specialize in performance optimization for legacy and business-critical systems.u2028We identify bottlenecks, analyze architecture limitations, and implement practical improvements ...

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and t2.occurtime>'2007-01-01' and t2.occurtime<'2007-01-02' 378 bytes sent via SQL*Net to client 503 bytes received via SQL*Net from client ...