Data Structures

• Structured
• Semi structured
• Unstructured

Structured Data

• Easy to search and organized
• Consistent model, rows and columns
• Defined types
• Relational database
• Created and queried using SQL
• Can be grouped

Semi structured Data

• Relatively easy to search and organized
• Consistent model, less rigid implementation and different observations have different size
• Different types
• No-SQL database such as XML, JSON, YAML formats
• Can be grouped but need more work

Unstructured Data

• Difficult to search and organized
• Don't follow a model
• Stord in data lake and may appear in data warehouse or database
• such as image, video, audio and text
• Can be extremely valuable but because it's difficult to search and organized, this value can not be extracted easily

See You Later