I have some troubles understanding the relation between the a person's First name and Last name in a table. (In a Relational Model)
I've read that the relation is of type: 1-1: They are linked together.
But the same first name can be attributed to multiple persons. And a single person may have multiple first names...
What I understood is:
Even if "John Doe" has many homonyms around the world, in a database, his first name would be directly linked to his last name.
To avoid this question, we can regroup the last name and first name in a single row but that would end with humans problems (Formatting errors: Which order, in capital letters ? separed by spaces or comas... ?)
In the case of a mail generation (for example), I should use the following format: Title + Last Name (Mr. Doe) instead of (Mr. DOE John).
Then I should atomize my two values.
This reflexion should seems useless as my research should be based on ID or others criterias but as I'm still learning, I try to understand the best way possible each details of a databases's conception.