ORA-04031: Unable to Allocate Shared Memory – Causes, Fixes, and Prevention (Oracle DBA Guide)
ORA-04031: Unable to Allocate Shared Memory is one of those Oracle errors that can strike unexpectedly in production, often during ...
Tag: Oracle 19c
Mastering Oracle Database Upgrades: XPO’s Journey to 23ai with Real Application Testing and Zero Downtime
Introduction Upgrading a mission-critical Oracle Database can feel like walking a tightrope — balancing performance, compatibility, and zero downtime. For ...
How to Apply Oracle Database Release Update 19.28 on Oracle 19c (RHEL)
Oracle 19c Release Update 19.28 is the July 2025 Critical Patch Update (RU 19.28.0.0.250715) for Oracle Database 19c, available on ...
How to Install Oracle 19c Database on Red Hat Enterprise Linux 9
Install Oracle 19c on Red Hat Enterprise Linux 9 with this complete step-by-step guide designed for beginners and DBAs. In ...
Oracle 19c Export/Import Guide: Users, Roles & Tablespaces
Oracle 19c Export Import is an essential process for database migration, but it involves much more than just moving data. ...
Active Data Guard DML Redirection in Oracle 19c: A Game-Changer for High Availability
When working with Oracle Active Data Guard (ADG), one common challenge has been handling DML operations (INSERT, UPDATE, DELETE, MERGE) ...
