1
Q
What is the main distinction between the relational and document data models?
A
The relational model uses normalized tables with relations, while document models store nested structures in a single document.
2
Q
What problem does the object-relational mismatch refer to?
A
The difficulty of mapping complex application objects to relational database schemas.
3
Q
What is a graph data model suitable for?
A
Applications with highly connected data, such as social networks and recommendation systems.
4
Q
Name a common query language for property graphs.
A
Cypher.
5
Q
What are declarative query languages?
A
Languages where you specify what data you want, not how to get it (e.g., SQL).
