Oracle Database 23c: New Features

In today's rapidly evolving digital landscape, developers are in constant pursuit of tools that make application development faster, simpler, and more versatile. Oracle Database 23c emerges as a game-changer, delivering a comprehensive and user-friendly converged database for developers seeking to craft a wide array of applications, including microservices, graph-based solutions, document management, and relational databases.







In this blog, we'll provide an overview of some of the exciting features and improvements introduced in Oracle Database 23c. In subsequent blogs, we will delve deeper into each of these topics to help you unlock the full potential of this cutting-edge database release.




Many Datatype and SQL Enhancements😊


Oracle Database 23c introduces a host of enhancements in terms of datatypes and SQL capabilities. These improvements include:


- Boolean Datatype: Simplify logical expressions and improve data accuracy.

- Direct Joins for Update: Streamline update operations for enhanced efficiency.

- SELECT without FROM: Empower your queries with more flexibility.

- Group By Alias: Enhance query readability and expressiveness.

- Unicode-14 Support: Ensure your database can handle a wider range of characters and symbols with ease.


True Cache


One of the standout features in Oracle Database 23c is the "True Cache." This high-performance, in-memory cache operates in perfect harmony with the database, resulting in more responsive applications and reduced server load. It can be leveraged as an application tier cache, edge cache, regional cache, or even in a multi-cloud environment to optimize data access.


Inter-Instance Resource Management


Database administrators (DBAs) will appreciate the ability to specify the priority of different databases running on the same server. This feature enhances hardware utilization and mitigates risks associated with server consolidation.


Schema Level Privileges


Streamlining privilege management, Oracle Database 23c allows system privileges to be granted at the schema level. This simplifies the process of securing databases, ensuring a more robust and efficient security model.


SQL Domains


Developers can now declare the intended usage of data (columns) centrally and with ease. This feature empowers applications to automatically generate code or validate values for various data types, such as emails, URLs, passwords, and currency.


Automatic Materialized Views


Machine learning capabilities are harnessed to manage materialized views, enhancing analytical performance and ensuring that your applications run at peak efficiency.


Lock-free Column Value Reservations


Applications can now reserve portions of a column value without locking the entire row. For example, this allows for dynamic reservations of bank account balances or items in inventory, all while keeping other operations running smoothly.


Rolling Patching


Oracle Database 23c introduces rolling patching for updates that impact or modify data dictionary structures. This feature eliminates downtime, increasing availability and minimizing disruptions during patch application.


SQL Firewall


Embedded within the database, SQL Firewall offers real-time protection against common database attacks. It monitors and blocks unauthorized SQL and SQL injection attacks, regardless of the execution path, ensuring your data remains secure.


Read-Only Per-PDB Standbys


Per-PDB Data Guard now supports the opening of PDBs in a read-only state. This enhancement further boosts flexibility, enabling reporting and offloading tasks to be seamlessly executed on standby databases.


Priority Transactions


Low-priority transactions that hinder high-priority operations can now be automatically aborted, reducing the administrative burden on DBAs and maintaining high transaction throughput.




Oracle Database 23c stands ready to empower developers, administrators, and organizations with a host of innovative features and enhancements. In our upcoming blogs, we will take a closer look at each of these features, helping you harness the full potential of this remarkable database release for your specific needs. Stay tuned for in-depth insights and practical tips on leveraging Oracle Database 23c for your projects.

Oracle Database 23c

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