Andmebaasimootori

Andmebaasimootori, also known as a database engine, is a software component that manages and manipulates databases. It provides a set of tools and services to create, read, update, and delete data within a database. The primary functions of a database engine include query processing, transaction management, and data storage and retrieval.

Database engines can be categorized into two main types: relational and non-relational. Relational database engines, such as MySQL and PostgreSQL, use a structured format to store data in tables with rows and columns. Non-relational database engines, often referred to as NoSQL databases, store data in various formats like documents, key-value pairs, or graphs, which can be more flexible and scalable for certain types of applications.

Key features of a database engine include support for SQL (Structured Query Language) for querying data, indexing for faster data retrieval, and mechanisms for ensuring data integrity and consistency through features like ACID (Atomicity, Consistency, Isolation, Durability) compliance. Additionally, many modern database engines offer advanced features such as replication, sharding, and distributed computing to handle large-scale data processing and high availability.

The choice of a database engine depends on various factors, including the specific requirements of the application, the nature of the data, and the desired performance characteristics. For example, relational databases are often preferred for applications that require complex queries and transactions, while NoSQL databases may be more suitable for handling unstructured data or providing high scalability and performance.