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Oracle Databases: Main Differences Between 12c, 18c and 19c

Tyler BoykinBy: Tyler Boykin


One of the most popular database systems worldwide, Oracle, is trusted by some of the biggest businesses in operation. With many different Oracle database versions released, Oracle provides innovative capabilities in many areas, including management, performance, security, and development.

Both database administrators and developers can easily use this database system to create innovative applications for their business operations. The Oracle brand is well-known for its continued dedication to paving the future development of upgraded features to better assist businesses, small and large, with their data management needs. Currently, the latest Oracle versions include 11G, 12C, 18C, and 19C.

A Breakdown of Oracle Versions

Version 11G

Released back in 2008, Version 11G is an older release of the Oracle database versions. This RDBMS that has no pluggable databases. This Oracle version is considered very easy to install, develop, and manage. It has an intuitive browser-based interface that allows for built-in testing of database changes. This is a priceless feature that previous Oracle versions lacked.

Version 11G offers the ability to view tables back in time. It also provides superior compression of all data. This quality makes running reports much faster as the process uses less disk space. This version introduced the prized SQL developer that presents a graphical user interface tool for developers to more efficiently query, define, and control data.

Version 12C

In 2014, Oracle officially released Version 12C, which is the first in the C series. This high-performance RDBMS is designated with a C instead of a G as it's the first version of Oracle designed to work on the Cloud. This Oracle version makes it super easy for businesses to transition their existing Oracle database information to the Cloud. Version 12C has introduced 500 new features into the Oracle Database. The most notable features are the pluggable databases and multitenant architecture.

Version 18C

Oracle Version 18C is one of the latest versions to be released as an autonomous database. This self-driving database is self-securing and self-repairing. Version 18C is available for the Oracle cloud or on-site premises. This version has started a new Oracle version naming structure based on its release year of 2018. Therefore, there are no releases between 12C and 18C.

A Breakdown of Oracle Versions

Oracle Version 19C

The latest Oracle version, the 19C, was released in early January 2019. It's been noted as the long term release for the 12.2 product family of Oracle databases. This particular version will be supported through 2023, with extended support available until 2026.

Some of the newest features in the 19C release include:

Unlike with previous Oracle versions, 19C solves the problem of overloading system resources with query requests. This version provides automatic query quarantine to ensure that specific queries aren't running over and over.

This version has simplified the syntax for JSON functions and allows users the capability to do partial updates of JSON. In addition, it provides SODA APIs for Node.js, C, Python, and Java.

19C offers a machine learning algorithm feature that provides constant index adjustment. This algorithm leads to enhanced system performance and more cost savings. After just a short amount of use, this database version will build indexes that allow for more efficient plans for each dataset.

This 19C feature permits database administrators to manage tables both inside and outside the database with ease. The partitions inside the database can easily be managed alongside partitions that are in read-only data stores outside of the database on the premises or on the Cloud.

This new feature works to prevent downtime and data loss during database repairs and upgrades. It allows for incidental updates to be run while a synchronized physical replica or standby is maintained.

Reasons to Upgrade To 19C

Upgrading to the latest Oracle version offers many great benefits for your business. One of the most vital is that the Oracle lifetime support policy only follows their latest version. If you don't upgrade from older versions, your support will lapse, and your business will be left without Oracle assistance for issues you may face.

Second, on the list of reasons is that newer operating systems only support newer database programs. Some of the older Oracle versions aren't supported on newer operating systems that your business is likely running. If you don't continue to upgrade your database version, you're going to run into issues when upgrading your operating systems.

Lastly, you need to consider security. As with any sort of technology, the latest version is always the most secure. This is because the developers evaluate past security issues with their previous versions. Then, they remedy these problems in their newest release, making it even safer for the user.

In Summary

Throughout this article, we've taken a look at what the Oracle database is and why it's the most widely used RDBMS around the globe. We've discovered the various features offered in the latest Oracle versions 11G, 12C, 18C, and the newest 19C release. It's no short leap to understand why having the latest Oracle database version is essential to your business operations.

While you understand this need, you may be struggling to determine how to integrate this latest version into your daily operations. With Oracle consulting services offered by Chetu, you can easily get access to Oracle 19C. As an Oracle Gold Partner, Chetu has extensive knowledge about Oracle database versions and how to best utilize them to enhance your business processes and lower operational costs.

Chetu offers cloud migration, integration services, remote DBA service, and implementation consulting. They'll work with your business to evaluate your specific needs and deliver you the most beneficial Oracle cloud solution. Chetu world-class software solutions take the guessing game out of integrating and upgrading the Oracle database, so your business can start benefiting from it today.


Chetu, Inc. does not affect the opinion of this article. Any mention of specific names for software, companies or individuals does not constitute an endorsement from either party unless otherwise specified. All case studies and blogs are written with the full cooperation, knowledge and participation of the individuals mentioned. This blog should not be construed as legal advice.

Chetu was incorporated in 2000 and is headquartered in Florida. We deliver World-Class Software Development Solutions serving entrepreneurs to Fortune 500 clients. Our services include process and systems design, package implementation, custom development, business intelligence and reporting, systems integration, as well as testing, maintenance and support. Chetu's expertise spans across the entire IT spectrum.

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