How to Add Composite Key Constraint in Fields?

In this video, we are explaining how to create a Unique validation on the combination of 2 or more fields (called composite key constraint ) in any collection. Composite key means that the combination of 2 or more field values should be unique.

How to Add Composite Key Constraint in Fields? feature in DrapCode allows users to enforce data integrity by setting up composite keys. This ensures that a combination of multiple fields remains unique, preventing duplicate records and maintaining database accuracy. It is especially useful for applications that require strict validation across multiple data points.

Example: Student Roll no and class name, so no 2 students in the same class can have the same roll number. But 2 students of different class can have the same roll no Or 2 students of the same class can have different roll numbers.

Another example could be: Employee ID and Company name, so no 2 employees of the same company can have the same Employee ID, but 2 employees of different companies can have the same Employee ID or 2 Employees of the same company can have different IDs.

For better data management and retrieval, explore How to Use Filter Conditions? to learn how to refine displayed records. This feature helps users dynamically sort and display relevant data based on specific criteria, improving user experience and data accessibility.

You can also check out our other video tutorials if you want:

• HTML Theme to Build UI in DrapCode
• How to Implement Background Color, Color Gradient & Images to a Component
• Working with Pre Built Sections - A Library of Ready Made UI Components
• Profile Picture and Data of Current Logged In User

Please reach out to us on support@drapcode.com for any further queries. We would be happy to help you in building your no code web apps on DrapCode.