Do you have knowledge of the theoretical aspects of working with databases?
sobes.tech AI
Answer from AI
Theoretical aspects of working with databases include understanding the following key concepts:
-
Data models: relational, document, graph, etc. The relational model is based on tables with relationships.
-
Normalization: the process of organizing data to reduce redundancy and ensure integrity.
-
Transactions: a sequence of operations executed atomically. They ensure ACID properties (atomicity, consistency, isolation, durability).
-
Indexes: data structures to speed up searches.
-
Query language: SQL for relational databases, allowing creation, reading, updating, and deleting data.
-
Isolation paradigms: levels of transaction isolation to prevent conflicts during concurrent access.
-
Types of databases: SQL (relational) and NoSQL (document, key-value, graph, etc.).
In the context of Node.js, it is important to understand how to interact with databases through drivers and ORM, as well as the features of asynchronous data handling.