Missing or Incorrect JSON Data

Oct 13, 2025 by talynt.org 137 views

Introduction

When working with PL/SQL stored procedures, it's not uncommon to encounter errors related to the use of JSON object types. In this article, we'll delve into the specifics of the error code -40573, also known as ORA-40573, and explore the possible causes and solutions for this issue.

Understanding the Error

The error code -40573, or ORA-40573, is raised when there's an invalid use of the PL/SQL JSON object type. This type is used to represent JSON data in PL/SQL, allowing for the manipulation and processing of JSON data within the database.

Possible Causes

There are several reasons why you might encounter this error. Here are some possible causes:

Incorrect Usage of JSON_OBJECT_T: The JSON_OBJECT_T type is used to create a JSON object in PL/SQL. However, if you're using it incorrectly, such as trying to use it as a table or a collection, you'll encounter this error.
Missing or Incorrect JSON Data: When working with JSON data, it's essential to ensure that the data is properly formatted and complete. Missing or incorrect data can lead to this error.
PL/SQL Version Issues: The JSON object type was introduced in Oracle 12c. If you're using an earlier version of Oracle, you might encounter this error due to compatibility issues.

Example Use Case

Let's consider an example use case to illustrate the issue. Suppose we have a stored procedure that inserts data into a table using the JSON_OBJECT_T type:

CREATE OR REPLACE PROCEDURE insert_data(p_json IN JSON_OBJECT_T)
AS
BEGIN
    INSERT INTO my_table (data)
    VALUES (p_json);
END;

In this example, the procedure takes a JSON object as an input parameter and inserts it into the my_table table. However, if we try to call this procedure with an invalid JSON object, we'll encounter the -40573 error:

BEGIN
    insert_data('{"key": "value"}');
END;

Solution

To resolve this issue, we need to ensure that we're using the JSON_OBJECT_T type correctly and that the JSON data is properly formatted. Here are some steps to follow:

Verify the JSON Data: Before passing the JSON data to the procedure, ensure that it's properly formatted and complete.
Use the Correct JSON Object Type: Make sure you're using the JSON_OBJECT_T type correctly, such as creating a JSON object using the JSON_OBJECT function.
Check the PL/SQL Version: If you're using an earlier version of Oracle, consider upgrading to a version that supports the JSON object type.

Best Practices

To avoid encountering this error in the future, follow these best practices:

Use the Correct JSON Object Type: Always use the JSON_OBJECT_T type when working with JSON data in PL/SQL.
Verify the JSON Data: Ensure that the JSON data is properly formatted and complete before passing it to a procedure.
Test Your Code: Thoroughly test your code to catch any errors related to the JSON object type.

Conclusion

In this article, we explored the error code -40573, also known as ORA-40573, and its possible causes and solutions. By understanding the error and following best practices, you can avoid encountering this issue in the future. Remember to use the correct JSON object type, verify the JSON data, and test your code to ensure that your PL/SQL stored procedures run smoothly.

Additional Resources

For more information on working with JSON data in PL/SQL, refer to the following resources:

Introduction

In our previous article, we explored the error code -40573, also known as ORA-40573, and its possible causes and solutions. In this article, we'll provide a Q&A section to help you better understand the issue and its resolution.

Q&A

Q: What is the error code -40573, and what does it mean?

A: The error code -40573, or ORA-40573, is raised when there's an invalid use of the PL/SQL JSON object type. This type is used to represent JSON data in PL/SQL, allowing for the manipulation and processing of JSON data within the database.

Q: What are the possible causes of the error code -40573?

A: There are several reasons why you might encounter this error. Some possible causes include:

Incorrect Usage of JSON_OBJECT_T: The JSON_OBJECT_T type is used to create a JSON object in PL/SQL. However, if you're using it incorrectly, such as trying to use it as a table or a collection, you'll encounter this error.
Missing or Incorrect JSON Data: When working with JSON data, it's essential to ensure that the data is properly formatted and complete. Missing or incorrect data can lead to this error.
PL/SQL Version Issues: The JSON object type was introduced in Oracle 12c. If you're using an earlier version of Oracle, you might encounter this error due to compatibility issues.

Q: How can I resolve the error code -40573?

A: To resolve this issue, you need to ensure that you're using the JSON_OBJECT_T type correctly and that the JSON data is properly formatted. Here are some steps to follow:

Verify the JSON Data: Before passing the JSON data to the procedure, ensure that it's properly formatted and complete.
Use the Correct JSON Object Type: Make sure you're using the JSON_OBJECT_T type correctly, such as creating a JSON object using the JSON_OBJECT function.
Check the PL/SQL Version: If you're using an earlier version of Oracle, consider upgrading to a version that supports the JSON object type.

Q: What are some best practices to avoid encountering the error code -40573?

A: To avoid encountering this error in the future, follow these best practices:

Use the Correct JSON Object Type: Always use the JSON_OBJECT_T type when working with JSON data in PL/SQL.
Verify the JSON Data: Ensure that the JSON data is properly formatted and complete before passing it to a procedure.
Test Your Code: Thoroughly test your code to catch any errors related to the JSON object type.

Q: What are some additional resources for working with JSON data in PL/SQL?

A: For more information on working with JSON data in PL/SQL, refer to the following resources:

Conclusion

In this article, we provided a Q&A section to help you better understand the error code -40573, also known as ORA-40573, and its resolution. By following the best practices and using the correct JSON object type, you can avoid encountering this issue in the future. Remember to verify the JSON data, test your code, and use the correct JSON object type to ensure that your PL/SQL stored procedures run smoothly.