A Practical Implementation Guide with User Registration, QR Code Enrollment, OTP Verification, and Custom Authentication Author: Zulqarnain HaiderApplication Name: Two-Factor Authentication DemoOracle APEX Export Release: 26.2.1Technology: Oracle APEX, Oracle Database, …

Oracle Active Session History (ASH) : The Sampling Model for Transient Performance Problems : Introduction : AWR and ADDM operate on snapshots. By default, AWR captures a snapshot once per …

Oracle Database Replay: Full-Scale Workload Testing for Changes and Migrations : Introduction : Every DBA eventually faces a change that is too risky to test with a handful of SQL …

Oracle 10053 Optimizer Trace: Seeing Inside the Cost-Based Optimizer : Introduction : Every time Oracle performs a hard parse of a SQL statement, the Cost-Based Optimizer (CBO) goes through a …

A Practical Guide to Oracle APEX Workflow Automation, PL/SQL Activities, Workflow Variables, Conditional Branching, and Workflow Monitoring 1. Introduction Workflow automation is an important part of modern enterprise applications. Many …

Oracle SQL Monitor : Real Time Execution Plan Monitoring : Introduction : SQL Monitor is a diagnostics tool that tracks long-running SQL statements while they are still executing. It does …

Oracle AWR Compare Periods Report : Diagnosing Database Performance Degradation   Introduction : AWR Compare Periods Report (officially “AWR Compare Periods”) is part of Oracle’s Diagnostics Pack. Its purpose is …

Oracle SQL Performance Analyzer (SPA) : Predicting the Impact of Changes on SQL Workloads Introduction As a DBA, you often face a decision: the database needs to be upgraded, an …

Introduction : A deadlock is a situation in which two or more sessions are waiting for each other to release locks, creating a circular dependency. Unlike simple blocking, where one …

Introduction : When you manage an Oracle database in production, performance problems are inevitable. A query suddenly slows down, users start complaining, and you need to figure out what went …