Databases

KQL

A query language designed to explore and analyze large amounts of data quickly. It is commonly used in Azure services to search logs, metrics, and events stored in databases.

Pinecone

A database designed to store and search vector data efficiently. It is often used with machine learning systems to power semantic search and recommendations.

Qdrant

A vector database built to store, index, and search high-dimensional data. It is commonly used in machine learning applications for similarity search.

Weaviate

A vector database designed to store and search data using machine learning models. It is often used for semantic search and recommendation systems.

DuckDB

An analytical database designed to run fast queries directly on local data files. It is often used for data analysis and machine learning workloads.

OLTP

A type of system designed to handle a large number of small database transactions. It is commonly used in applications that require fast read and write operations.

OpenSearch

A search and analytics engine used to index and query large volumes of data. It is commonly used for log and text search.

Vector Database

A database designed to store and search vector representations of data. It is widely used in machine learning applications.

In-memory database

An in-memory database (IMDB) is a type of database system that stores and manages data primarily in the system's main memory (RAM), rather than on disk or other storage devices. This allows for extremely fast data access and retrieval, as there is no need to read from or write to a physical disk.

Aerospike

Aerospike is a flash-optimized in-memory open source NoSQL database.

AllegroGraph

AllegroGraph is a database and application framework for building Semantic Web applications. It can store data and meta-data as triples; query these triples through various query APIs like SPARQL and Prolog; and apply RDFS++ reasoning with its built-in reasoner.

Amazon Neptune

Amazon Neptune is a cloud-native, fully managed database service designed to streamline the development and operation of graph applications. It comes equipped with features like integrated security, ongoing backups, serverless computing, and seamless integrations with various other Amazon Web Services.

Apache Druid

Druid is a column-oriented, open-source, distributed data store written in Java. Druid is designed to quickly ingest massive quantities of event data, and provide low-latency queries on top of the data.

ArangoDB

An open source NoSQL database with a flexible data model for documents and graphs. It is designed as a “general purpose database,” offering all the features typically needed for modern web apps.

AWR

Automatic Workload Repository is a built-in repository in every Oracle Database. The Oracle DB makes a snapshot of all of its vital statistics and workload information and stores them in the AWR. 

Azure Cosmos DB

Azure Cosmos DB is a fully managed database service with turnkey global distribution and transparent multi-master replication. 

Berkeley DB

A built-in database system for key/value data. It is easy to use, supports the ability to simultaneously access multiple users, implements transaction support at the industrial level, and restores databases after system and disk failures.

BigchainDB

BigchainDB is an open source distributed storage system whose aim is to combine the main benefits of “traditional” NoSQL databases with the benefits of blockchain technology. 

Big Table

A proprietary high-performance database built on the basis of Google File System (GFS), Chubby Lock Service and some other Google products. Currently not distributed or used outside Google.

Cassandra

A distributed database management system related to the class of NoSQL-systems and designed to create highly scalable and reliable storages of huge data sets providing high availability with no single point of failure.

ClickHouse

A fast open-source column-oriented database management system that allows generating analytical data reports in real-time using SQL queries.

Cloud Firestore

Cloud Firestore is flexible, scalable NoSQL cloud database, built on Google Cloud infrastructure, to store and sync data for client- and server-side development.

Cloudflare D1

Cloudflare D1, or simply D1, is a serverless database. It supports SQLite to store and query relational data globally with low latency. 

Cloud Spanner

Cloud Spanner is a remarkably scalable database that seamlessly integrates limitless scalability with relational features like secondary indexes, robust consistency, schemas, and SQL capabilities, offering an impressive 99.999% availability all within a single solution. 

CockroachDB

A distributed SQL database for cloud services. CockroachDB is built on consistent key-values, horizontal scalability, and to survive datacenter, disk or machine failures with minimal disruptions due to replication and automated repair features. It is more suitable in the cases of multi-datacenter and -region deployments, cloud migrations, cloud-native infrastructure, and replicated or distributed OLTP (online transaction processing), rather than for heavy analytics.