Hi kamalhossain303,
It sounds like you have an existing database with a few tables in it and want to create a new table that is linked to it. You want this new table to have the Customer ID, Name, and Given Name, with at least one of these fields existing in another table.
If my understanding is correct, please let me know. I've been using Access and many other relational-database systems for many years and would be happy to help you complete this task.
I also understand the desire to keep personal information that way, and not want to share it via a public forum. If my understanding was correct, I can create a dummy Access database, with fictitious data to demonstrate how this process works, along with providing a step by step of what I did to accomplish the tasks, that way you can follow along on your own databases without me ever seeing the data.
If you have any questions, please let me know. I'm available to begin working on this project right away and I'm online now if you want to discuss any questions or concerns you may have.
Thanks for taking the time to read my post,
Andrew Goulart
Level Up Inc - Taking Your Projects to the Next Level