Mod 9.2 Flashcards
1
Q
What is non-structured data?
A
Data that doesn’t have a clear order or pattern
2
Q
What does a relationship in a database do?
A
Connects two entities
3
Q
Which type of data is best stored in a relational database?
A
Structured data
4
Q
What is a relational database?
A
A database that keeps data in several connected tables.
5
Q
What does NoSQL stand for?
A
Not Only SQL
6
Q
Why are key-value databases useful for tasks that need quick data access?
A
They have a flexible structure
7
Q
What does a key in a key-value database represent?
A
A unique identifier
8
Q
What can the value in a key-value pair be?
A
Any type of data
9
Q
How does a document database store data?
A
In flexible documents
10
Q
What data formats are commonly used in document databases?
A
JSON and XML
