wp_users 

This is the primary storage location for users, consisting of ten columns. Let's identify some of the most important columns in this table:

user_login Used as the username for the site. You can allow users to change it using your own implementations. However, this value needs to be unique.
user_pass Stores the encrypted password for the user.
user_email Used as the email of the user. Since WordPress allows users to login with email, this value needs to be unique for each user.
user_registered Stores the registration date and is often used to sort the list of users or assign the membership period on membership-based sites.

 

The data in this table doesn't change based on the type of site you are developing, and hence ...

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