Short answer: data normalization is splitting your data into smaller, related tables to avoid repetition.
Long answer: It’s a set of rules (called "normal forms") to structure your database efficiently. For example, 1NF (First Normal Form) means no repeating groups—each column should have a single value.
But sometimes, like in reporting, you might denormalize for performance. Tools like MySQL Workbench can help you design normalized schemas easily.
Pro tip: Start with 3NF (Third Normal Form) for most apps—it’s the sweet spot between clean data and practicality.
Long answer: It’s a set of rules (called "normal forms") to structure your database efficiently. For example, 1NF (First Normal Form) means no repeating groups—each column should have a single value.
But sometimes, like in reporting, you might denormalize for performance. Tools like MySQL Workbench can help you design normalized schemas easily.
Pro tip: Start with 3NF (Third Normal Form) for most apps—it’s the sweet spot between clean data and practicality.