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mysql - Defining a two-way link - Stack Overflow
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Database Design Create Tables and Relationships with SQL
How does Facebook maintain a list of friends for each user? Does it maintain a separate table for each user? - Quora
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c# - Database design for storing facebook friends list + Device Addressbook - Stack Overflow
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Facebook Style Friend Request System Database Design.
Graph processing - SQL Server and Azure SQL Database | Microsoft Learn
How to create a friends table in SQL - Quora
c# - Problems with entity framework and friends database - Stack Overflow
User Friends System & Database Design - by Herry Gunawan
Database Design Create Tables and Relationships with SQL
User Friends System & Database Design - by Herry Gunawan
mysql - How should I design a relationship table for friendship? - Database Administrators Stack Exchange
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How many relational database tables does Facebook have for each user? - Quora
What is a database schema? | Blog | Fivetran
Future Internet | Free Full-Text | Suitability of Graph Database Technology for the Analysis of Spatio-Temporal Data
How to design social network database – Sochinda
The Flask Mega-Tutorial, Part VIII: Followers, Contacts And Friends (2012) - miguelgrinberg.com
database relationship scheme MySQL - profiles - Stack Overflow
