In the rapidly evolving data landscape where enterprises demand real-time analytics and operational agility, Oracle 19c elevates the In-Memory Column Store (IMCS) with a powerful capability: automatic memory management. This enhancement streamlines the way memory is allocated for in-memory objects, ensuring performance tuning becomes more adaptive, resilient, and aligned with dynamic workloads. It brings a […]
Oracle 19c strengthens the enterprise data management landscape by enabling online merging of adjacent table partitions—a refined capability that blends operational continuity with intelligent storage optimization. As organizations scale and data volume intensifies, the ability to reshape partition strategies without downtime becomes a cornerstone of performance engineering. Oracle’s online partition merge elevates this vision by […]
Oracle 19c elevates database intelligence by enabling Automatic Indexing by default, empowering DBAs and architects to achieve optimal performance without manual intervention. This strategic capability transforms the database into a self-managing ecosystem where indexing decisions are continuously evaluated, implemented, and refined based on real workload patterns. Automatic Indexing monitors SQL statements, identifies performance bottlenecks, and […]
In reporting and analytics, we often need to rotate data — turning rows into columns or columns into rows.SQL provides two powerful operators for this purpose: PIVOT and UNPIVOT. Let’s explore them step by step with examples from the HR schema. Example 1: Pivoting Employee Count by Job and Department This query counts employees by […]