Automatic Indexing in Oracle 19c

Index management has traditionally been one of the most time-consuming tasks for DBAs. Oracle 19c introduces Automatic Indexing, an intelligent feature that monitors SQL workloads, creates or drops indexes automatically, and continuously improves performance — all without manual intervention. With Automatic Indexing, you can shift from reactive index management to a proactive, self-tuning database. How […]

Key Views and Diagnostic Tools for Monitoring Oracle 19c Data Guard Performance

Monitoring Oracle Data Guard environments—especially in mission-critical setups—requires a robust and proactive approach. Oracle 19c provides a suite of dynamic performance views (V$ views), built-in diagnostics, and enterprise-grade tools to monitor and troubleshoot both Redo Transport Services and Redo Apply Services. This post highlights the essential views, tools, and practical metrics DBAs should leverage to […]

LISTAGG DISTINCT in Oracle 19c

Oracle Database 19c introduces a significant enhancement to the LISTAGG function by supporting the DISTINCT keyword directly within the aggregation clause. This simplifies query logic and improves readability when deduplicating values in aggregated string lists. Problem Statement The traditional LISTAGG function aggregates values into a delimited string but does not inherently remove duplicates, potentially leading […]

Oracle Data Pump’s TRANSFORM Parameter

As enterprises increasingly navigate complex data landscapes—ranging from cloud transitions to heterogeneous system consolidations—the ability to fine-tune data import processes becomes mission-critical. Oracle Data Pump (impdp) provides a robust suite of features for high-performance data movement, and among its most flexible components is the TRANSFORM parameter. The TRANSFORM parameter empowers database administrators and architects to […]