🔑🤝📊

#foreign key #database #relationship #SQL #table constraint #data integrity #relational model

💾🏛️🔗

#database schema #relational model #data structure #database design #tables and columns #entity relationship diagram

🗂️↔️🗂️

#relational model #database schema #table join #data structure #entities #RDMS #data link

🗄️📐📄

#database schema #table structure #data organization #data storage design #relational model #file format framework

🏗️↔️🔑

#database schema #relational model #primary key #foreign key #joins #database structure

👨‍💻📊💾

#edgar codd #codd #relational model #normalization

2️⃣🔑🔗✅

#second normal form #2NF #full functional dependency #database normalization #key dependency #relational model