Introduction Oracle REST Data Services (ORDS) is the middleware layer that powers Oracle APEX, REST API s, and database-backed web services. While ORDS works out of the box, default settings are not…
Read MoreWe all have noticed how some SQL Server queries feel like a luxury express train, zooming to their destination, while others resemble a sluggish car through traffic jams?
Read MoreDiagnosing performance issues in old sessions is easy with an Oracle Database feature called Active Session History. Every second, Active Session History polls the database to identify the active sessions…
Read MoreWhat Is an Execution Plan? When you send a query to the database, it’s the job of the SQL optimizer to figure out how to execute it, and that process…
Read MoreSample Query with Performance Issue: SELECT progress_date, LEVEL slno FROM (SELECT PROGRESS_ID,progress_date, MAX…
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