Technologyfreq: 1Discovered via Dusty Flow
Primary Key
/ˈpraɪ.mə.ri keɪ/noun
ELI5 Mode🧒
A primary key is a unique identifier assigned to each record in a database table, ensuring no duplicates and enabling efficient data retrieval. In today's digital world, it's essential for maintaining data integrity in everything from e-commerce platforms to social media databases, acting as the linchpin that keeps vast amounts of information organized and accessible.
AI-generated·
Did you know?
The concept of primary keys, introduced in E.F. Codd's 1970 paper on the relational model, has enabled the global storage of over 2.5 quintillion bytes of data daily, powering everything from online banking to streaming services—without it, the internet as we know it would descend into chaotic duplicates and errors.
Verified Sources
Your Usage Frequency
1 / 721