Скачать или смотреть Display Value vs. ID in Oracle APEX: Leveraging LOVs Effectively

Learn how to display user-friendly values in Oracle APEX tables by utilizing Lists of Values (LOVs) instead of ID values. Discover practical steps for implementation.
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Display User-Friendly Values Instead of IDs in Oracle APEX

When working with Oracle APEX (Application Express), a common challenge developers face is how to display meaningful data in user interfaces. Specifically, you might be dealing with a scenario where you have a List of Values (LOV) but only see the ID in your display tables rather than a user-friendly display value. This guide will walk you through the solution step-by-step, ensuring your tables are not just functional but also intuitive for users.

Understanding the Problem

In a typical Oracle APEX project, you might have a LOV structured like this:

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When data is saved to the database, it keeps the ID (or Value), but when this data is retrieved for display in a table, you may want to show the corresponding display value (like A, B, or C) instead of the ID (1, 2, or 3). Users generally find display values more meaningful and easier to understand. The question becomes: how can you use the LOV to achieve this in your tables?

Solution Overview

There are two main approaches to show display values in your tables, rather than IDs. Let’s explore these methods in detail.

Method 1: Using Column Type Setting

Column Type Configuration:

In your APEX application, navigate to the region where your table is defined.

Locate the column that is currently set to “Plain Text”. This setting displays whatever is in the database, usually an ID if it’s a foreign key.

Change Column Type:

Change the column type from “Plain Text” to “Plain Text (based on List of Values)”.

By selecting this option, you can associate the column with the corresponding LOV.

Select the LOV:

Specify which LOV your column should reference.

Once this is set up, APEX will automatically display the lookup value instead of the ID in your table.

Method 2: Using SQL Joins

If you prefer more control over how data is presented or if you want to include custom logic, you can join the relevant lookup table in your SQL query:

Write a SQL Query:

Modify your SQL query to include a JOIN with the LOV table that contains your display values.

[[See Video to Reveal this Text or Code Snippet]]

Result Handling:

This method gives you the flexibility to pull in additional columns, apply filters or calculations, and customize how data is retrieved.

Conclusion

By utilizing the methods above, you can enhance the usability of your Oracle APEX application significantly. Whether you prefer quick adjustments through APEX’s built-in features or you need to implement more complex SQL logic, showing display values instead of IDs makes data interaction clearer and more intuitive for your users.

Now you can make your applications more user-friendly and effective by implementing these strategies in your Oracle APEX projects. Happy coding!