Does Oracle Support JSON Data Type?


Heather Bennett

Oracle is a powerful relational database management system that has been widely adopted by organizations around the world. As the demand for flexible and dynamic data storage increases, developers often wonder if Oracle supports the JSON data type. In this article, we will explore this question in detail.

The Rise of JSON

JSON (JavaScript Object Notation) is a lightweight data interchange format that has gained popularity due to its simplicity and compatibility with many programming languages. It allows developers to store and exchange data in a structured format that is easy to read and parse.

With the rise of web APIs and microservices architectures, JSON has become a preferred choice for representing data. Many modern applications rely heavily on JSON for storing complex data structures.

Does Oracle Support JSON?

Prior to Oracle Database 12c Release 1, Oracle did not have built-in support for the JSON data type. However, starting from Oracle Database 12c Release 2, Oracle introduced native support for JSON.

This means that developers can now store, query, and manipulate JSON documents directly within an Oracle database without any additional plugins or external libraries.

JSON Data Type

In Oracle Database 12c Release 2 and later versions, the JSON data type is available for storing JSON documents. This allows you to store entire JSON objects or arrays as a single column in a table.

The JSON data type supports all standard JSON functions and operators, allowing you to efficiently query and manipulate your JSON data. You can use functions like JSON_VALUE, JSON_QUERY, JSON_EXISTS, etc., to extract values or check for the existence of specific elements within your JSON documents.

Indexing JSON Data

Oracle also provides support for indexing JSON data, which can significantly improve the performance of your JSON queries. You can create indexes on specific JSON attributes or even create function-based indexes to extract values from your JSON documents.

By indexing your JSON data, you can efficiently query and filter large amounts of JSON documents, making it easier to retrieve the required information quickly.


JSON has become an essential part of modern application development, and Oracle recognized this trend by introducing native support for the JSON data type in Oracle Database 12c Release 2. With this support, developers can now store and query JSON data directly within the Oracle database without any additional dependencies.

In addition to the JSON data type, Oracle also provides powerful indexing capabilities for JSON data, allowing you to optimize your queries and improve performance.

In summary, if you are working with Oracle Database 12c Release 2 or later versions, you can confidently use the JSON data type for your application’s needs. It opens up new possibilities for storing and manipulating complex data structures in a relational database environment.

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