Week 1 [Course2] Introduction to Source Systems
Types of data
- Structure data: Tables have rows and columns
- Semi-structure data: ex: JSON ( javaScript Object Notation)
- Unstructure data: ex: Text, Video, Images, Audio
Source Systems
- Database: store data in an organized way : Structure data / Semi-Structure data
- File: Sequence of bytes representing information
- Streaming systems: Continuous flow of data
Online Transaction Processing or OLTP system
NoSQL (not only SQL) : Eventual consistent
- Data type -DOCUMENT become absolute nightmares to manage and query
SQL : Strongest consistent
ACID Compliance
- Obsidian Cho Người Yêu Thích Năng Suất
- Obsidian Cho Nhà Văn & Người Sáng Tạo Nội Dung
- Obsidian Cho Doanh Nhân & Chuyên Gia Kinh Doanh
- Obsidian Cho Nhà Nghiên Cứu & Học Giả
- Obsidian choObsidian Cho Học Sinh & Sinh Viên
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