Data Structure & Types
Data source types
| Type | Features | Examples | Stored in |
|---|---|---|---|
| Structured data | organized based on a relational data model; stored in rows | mySQL | database |
| Semistructured data | organized based on elements and the attributes that define them | CSV, XML, JSON | non-relational (NoSQL) database |
| Unstructured data | no predefined manner; can be anything | emails, photos, videos | non-relational (NoSQL) database |