Oracle Solutions
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Oracle 10053 Optimizer Trace
Oracle Solutions Oracle 10053 Optimizer Trace Faizan 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 complex calculation process:…
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Building a Conditional Workflow and Workflow Monitoring Console in Oracle APEX
Oracle Solutions Building a Conditional Workflow and Workflow Monitoring Console in Oracle APEX Zulqarnain A Practical Guide to Oracle APEX Workflow Automation, PL/SQL Activities, Workflow Variables, Conditional Branching, and Workflow Monitoring 1. Introduction Workflow…
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Oracle SQL Monitor : Real Time Execution Plan Monitoring
Oracle Solutions Oracle SQL Monitor : Real Time Execution Plan Monitoring Faizan 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 not…
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Oracle AWR Compare Periods Report
Oracle Solutions Oracle AWR Compare Periods Report Faizan 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 clear: take…
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Oracle SQL Performance Analyzer
Oracle Solutions Oracle SQL Performance Analyzer Faizan 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 index needs to be added, optimizer statistics…
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Oracle Database Deadlock – (ORA-00060: deadlock detected) Complete Troubleshooting Guide
Oracle Solutions Oracle Database Deadlock – (ORA-00060: deadlock detected) Complete Troubleshooting Guide Faizan 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…
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Oracle ADDM : Automatic Database Diagnostic Monitor
Oracle Solutions Oracle ADDM : Automatic Database Diagnostic Monitor Faizan 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 wrong…
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Oracle Data Redaction (Oracle Advance Features)
Oracle Solutions Oracle Data Redaction (Oracle Advance Features) Muhammad Ilyas Awan Oracle Data Redaction Oracle Advance Features Part I — Understanding Data Redaction 1.1 What Is Data Redaction? Oracle Data Redaction masks sensitive column values in a query’s result set at the…
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Oracle Blocking Sessions – Find & Resolve
Oracle Solutions Oracle Blocking Sessions – Find & Resolve Faizan Introduction – Oracle Database Blocking Sessions In Oracle Database, blocking occurs when one session holds a lock on a resource (typically a row or table) and another session attempts to access the same resource,…
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Building a Drag-and-Drop Shopping Cart in Oracle APEX 26.1
Oracle Solutions Building a Drag-and-Drop Shopping Cart in Oracle APEX 26.1 Zulqarnain Introduction Oracle APEX makes it possible to build interactive business applications using SQL and PL/SQL while also allowing developers to extend applications with JavaScript, CSS and…
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Oracle Flashback Database A Practical Recovery Demonstration
Oracle Solutions Oracle Flashback Database A Practical Recovery Demonstration Faizan Oracle Flashback Database : A Practical Recovery Demonstration Introduction Oracle Flashback Database is a database recovery feature that allows a database to be rewound to an earlier point in…