Lecture 11- Intro to NoSQL

Question 1

What do NoSQL databases provide?

Answer 1

• New ways of storiing and querying data
• Database dont require fixed schemas
• Horizontally scale easily
• Distributed systems that also provide = native fault tolerance and availability

Question 2

NoSQL capabilities support?

Answer 2

• Flexible data model
• Built in horizontal and vertical scaling capabilities
• Developers productivity
• Distributed environments (high availability and fault tolerance)

Question 3

What are the four main types/categories of NoSQL?

Answer 3

1. Key-value
2. Document
3. Column
4. Graph

Question 4

What are key-value stores?

Answer 4

• Simplest NoSQL databases
• Stores data as a collection of key-value pairs (key is unique and directly points to its associated value)

Question 5

What is a column family/column database?

Answer 5

• Organize data in columns rather than rows
• Store columns of data together
• Efficient for handling large data sets with dynamic schemas

Question 6

What are graph databases?

Answer 6

Designed to manage highly interconnected data representing relationships

Question 7

What are document stor databases?

Answer 7

• Store data in a document format, JSON or BSON or XML
• Each document contains key-value pairs or key-document pair
• These databases are schema-less, allowing flexibility in data structures within a collection