Glossary term
What is Schema? Meaning for developers
The structure of data (tables, fields, types). Example: users(id, email, name).
Learn it properly · System DesignLesson 20: SQL vs NoSQL: Picking the Right Data Model“SQL or NoSQL?” is the wrong question; the right one is “what shape is my data, and how will I read and write it?” The relational model and the four NoSQL families — key-value, document, wide-column and graph — what each is good at, the myths to drop, and a sensible default.