Oracle Database 19c, the long-term support release for the 12c and 18c family, focuses on stability and automation. The most significant SQL and developer-centric enhancements include automated indexing, hybrid partitioning, and expanded JSON support.
Partitioning is a cornerstone of large-scale data management. Oracle 19c extends this capability with hybrid partitioned tables, which allow a single table to have partitions stored partly inside the database (internal segments) and partly on external sources, such as flat files or Hadoop Distributed File System (HDFS). This feature enables a “data lakehouse” architecture where historical, rarely accessed data can reside on cheaper external storage while recent, hot data remains in high-performance tablespaces. SQL queries seamlessly access both, presenting a unified view without complex ETL pipelines. oracle sql 19c pdf new
Oracle Database 19c, the long-term support release for the 12c and 18c family, focuses on stability and automation. The most significant SQL and developer-centric enhancements include automated indexing, hybrid partitioning, and expanded JSON support.
Partitioning is a cornerstone of large-scale data management. Oracle 19c extends this capability with hybrid partitioned tables, which allow a single table to have partitions stored partly inside the database (internal segments) and partly on external sources, such as flat files or Hadoop Distributed File System (HDFS). This feature enables a “data lakehouse” architecture where historical, rarely accessed data can reside on cheaper external storage while recent, hot data remains in high-performance tablespaces. SQL queries seamlessly access both, presenting a unified view without complex ETL pipelines.
