Converting a Non-CDB database to a Pluggable Database (PDB) is a common modernization step when moving to the multitenant architecture introduced in Oracle Database 12c and later versions like Oracle Database 19c.The strategic goal is to migrate the standalone database into a Container Database (CDB) as a PDB, enabling centralized management, consolidation, and simplified patching. […]
In Exadata environments, Smart Scan normally activates automatically when Oracle performs a full table scan with direct path reads.However, in several real-world scenarios, the database optimizer cannot offload the work to storage servers, so Smart Scan does not occur. Below are the most common technical reasons. 1. Query Uses Index Access Instead of Full Table […]
Oracle Exadata is a high-performance engineered system designed specifically for running Oracle Databases. It integrates database servers, storage servers, networking, and intelligent software to deliver extreme performance, scalability, and reliability. Below are the major features that define the strength of this platform. 1. Smart Scan One of the most powerful capabilities of Exadata. Benefit: Faster […]
XTTS (Cross-Platform Transportable Tablespaces) is used to migrate large Oracle databases between different platforms while minimizing downtime.It combines three technologies: The idea is: Below is the full operational procedure used in real migrations. Step 1 — Verify Platform Compatibility Identify the source and target platform endian format. SELECT platform_name, endian_formatFROM v$transportable_platformORDER BY platform_name; Confirm the […]