Difference between Oracle 18C and 19C

In this article, we will learn why it is important to upgrade databases from 18C to 19C and what is the difference between Oracle 18C and 19C.

Version 18C

Oracle Version 18C is one of the last versions to release as a stand alone database. This stand-alone database is self-locking and self-repairing. Version 18C is available for Oracle Cloud or on-premises. This release started a new Oracle version naming structure based on the 2018 release year. Therefore there are no versions between 12C and 18C.

Oracle version 19C

The Oracle 19C, considers a long term release for the 12.2 families of Oracle databases. This particular version will be supported until 2023 and extended support until 2026.

The latest features in version 19C include are

Quarantine request
Unlike previous versions of Oracle, 19C solves the problem of overloading system resources with query requests. This version offers automatic quarantine of queries to ensure that certain queries are not executed over and over again.

JSON support
This release has simplified the syntax of JSON functions and allows users to perform incremental updates to JSON. It also offers SODA APIs for Node.js, C, Python, and Java.

Automatic indexing
19C provides a machine learning algorithm that allows constant adjustment of the index. This algorithm improves system performance and saves additional savings. After only a short period of use, this version of the database creates indexes that allow more efficient planning for each record.

Hybrid Partitioned Tables
This 19C feature database allows the administrators to manage easily tables inside and outside the database. Partitions within the database can be easily managed with partitions residing in read only data stores outside of the on-premises database or in the cloud.

Active data protection
This new feature prevents downtime and data loss during database repairs and upgrades. It allows occasional updates while maintaining a synchronized or standby physical replica.

Reasons to switch to 19C

Upgrading to the latest version of Oracle has many benefits for your business. One of the most important is that Oracle’s Lifetime Support Policy only follows the latest version. If you do not upgrade from older versions, your support will expire and your company will remain without Oracle support in the event of problems.

Second, the list of reasons is that newer operating systems only support the latest database programs. Some of the older versions of Oracle are not supported on newer operating systems that your company is likely to use. If you do not continue to upgrade your database version, you will have problems upgrading your operating systems.

As with any type of technology, the latest version is always the most secure. This is because developers evaluate previous security issues against their previous versions. Then fix these issues in the latest version to make it even more secure for the user.

If you have any questions or suggestions, feel free to ask in the comments section below.

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