NoSQL

Question 1

Polyglot persistence

Answer 1

a

Question 2

Need for NoSQL

Answer 2

a

Question 3

What is a NoSQL DB?

Answer 3

a

Question 4

What is BASE?

Answer 4

aa

Question 5

ACID vs BASE

Answer 5

s

Question 6

Why redis (key - value) was created?

Answer 6

Redis, which stands for Remote Dictionary Server, is a fast, open source, in-memory, key-value data store. The project started when Salvatore Sanfilippo, the original developer of Redis, wanted to improve the scalability of his Italian startup. From there, he developed Redis, which is now used as a database, cache, message broker, and queue.

Question 7

redis (key-value) use cases

Answer 7

Question 8

what are key-value dbs

Answer 8

Question 9

when are row dbs better than column dbs

Answer 9

Question 10

Why can column dbs be better than row dbs for: calculate average age of males?

Answer 10

Question 11

how are row dbs read

Answer 11

Question 12

how columns dbs are read

Answer 12

Question 13

how are column dbs stored

Answer 13

Question 14

what is a supercolumn

Answer 14

Question 15

What is a document db

Answer 15

Question 16

difference between document db and keyvalue db

Answer 16

The document db can store more complex data structures. A document can have many keys and values and nested structures. The other is more simple strings, lists, sets

A key-value store provides the simplest possible data model and is exactly what the name suggests: it’s a storage system that stores values indexed by a key. You’re limited to query by key and the values are opaque,

Question 17

Use case of keyvalue dbs

Answer 17

Question 18

use cases document db

Answer 18

Question 19

what is a graph db

Answer 19

Question 20

use cases graph db

Answer 20

Question 21

What is a triple store

Answer 21

Question 22

Answer 22