Databases

databases Bigtable and Spanner

database and Knowledge bases

expert on business technology and database use

He is the main author of the original version of the open source MySQL database

the primary author of SQLite

the creator of the Redis in-memory database

MongoDB Inc., where he was previously cofounder and chairman

leading the Database Systems Group in the Department of Computer Science

After the dissolution of the Soviet computer chess initiative in the beginning of the 1980s he went into development of databases.

In databases and transaction processing, two-phase locking (2PL) is a pessimistic concurrency control method that guarantees conflict-serializability.

Ellison was inspired by a paper written by Edgar F. Codd on relational database systems

Hugh Darwen is a computer scientist who was an employee of IBM United Kingdom from 1967 to 2004, and has been involved in the development of

Joe Celko is an American relational database expert from Austin, Texas.

This interest spans data integration, data exchange, knowledge curation and data sharing.

known for the theory and implementation of the first fuzzy relational database system

head of the Database Technology Research Group

C/AL is a Database specific programming language

conjunctive queries in databases (with Philip M. Merlin)

Oracle AI Database (commonly referred to as Oracle Database, Oracle DBMS, Oracle Autonomous Database, or simply as Oracle) is a proprietary multi-model database management system developed and marketed by Oracle Corporation.

MySQL () is a free and open-source relational database management system (RDBMS).

It is supported on all major operating systems, including Windows, Linux, macOS, FreeBSD, and OpenBSD, and handles a range of workloads from single machines to data warehouses, data lakes, or web services with many concurrent users. The PostgreSQL Global Development Group focuses only on developing a database engine and closely related components.

SQLite ( "S-Q-L-ite", "sequel-ite") is a free and open-source relational database engine written in the C programming language.

MariaDB is a open-source relational database management system (RDBMS) sharing a common heritage with MySQL, from which it was forked in 2009 by original MySQL developers following Oracle Corporation's acquisition of Sun Microsystems, with the intent to keep i

SAP ASE (Adaptive Server Enterprise), originally known as Sybase SQL Server, and also commonly known as Sybase DB or Sybase ASE, is a relational model database server developed by Sybase Corporation, which later became part of SAP SE. ASE was developed for the

Teradata Corporation is an American software company that provides cloud database and analytics-related software, products, and services.

Microsoft Access is a database management system (DBMS) from Microsoft that combines the relational Access Database Engine (ACE) with a graphical user interface and software-development tools.

Informix is a product family within IBM's Information Management division that is centered on several relational database management system (RDBMS) and multi-model database offerings.

HSQLDB (Hyper SQL Database) is a relational database management system written in Java.

Microsoft SQL Server is a proprietary relational database management system developed by Microsoft using Structured Query Language (SQL, often pronounced "sequel").

MongoDB is a source-available, cross-platform, document-oriented database program.

Apache CouchDB is an open-source document-oriented NoSQL database, implemented in Erlang.

Amazon DocumentDB is a managed proprietary NoSQL database service that supports document data structures, with some compatibility with MongoDB version 3.6 (released by MongoDB in 2017) and version 4.0 (released by MongoDB in 2018).

RethinkDB is a free and open-source, distributed document-oriented database originally created by the company of the same name.

Amazon DynamoDB is a managed NoSQL database service provided by Amazon Web Services (AWS).

etcd is a key-value database commonly deployed with distributed systems.

Riak (pronounced "ree-ack" ) is a distributed NoSQL key-value data store that offers high availability, fault tolerance, operational simplicity, and scalability.

Apache Cassandra is a free and open-source database management system designed to handle large volumes of data across multiple commodity servers.

HBase is an open-source non-relational distributed database modeled after Google's Bigtable and written in Java.

ScyllaDB is a source-available distributed NoSQL wide-column data store.

Amazon Neptune is a managed graph database product published by Amazon.com.

ArangoDB is a graph database system developed by ArangoDB Inc.

OrientDB is an open source NoSQL database management system written in Java.

JanusGraph is an open source, distributed graph database under The Linux Foundation.

Elasticsearch is a source-available search engine developed by Elastic.

ClickHouse is an open-source column-oriented DBMS (columnar database management system) for online analytical processing (OLAP) that allows users to generate analytical reports using structured query language (SQL) queries in real-time.

Druid is a column-oriented, open-source, distributed data store written in Java.

CockroachDB is a source-available distributed SQL database management system developed by Cockroach Labs.

Volt Active Data (formerly VoltDB) is an in-memory database designed by Michael Stonebraker, Sam Madden, and Daniel Abadi.

TiDB (; "Ti" stands for Titanium) is an open-source NewSQL database that supports Hybrid Transactional and Analytical Processing (HTAP) workloads.

Berkeley DB (BDB) is an embedded database software library for key/value data, historically significant in open-source software.

RocksDB is a high performance embedded database for key-value data.

LevelDB is an open-source on-disk key-value store written by Google fellows Jeffrey Dean and Sanjay Ghemawat.

InfluxDB is a time series database (TSDB) developed by the company InfluxData.

TimescaleDB is an open-source time series database developed by Timescale Inc.

'High-performance ANalysis Application') is an in-memory, column-oriented, relational database management system developed and marketed by SAP SE. Its primary function as the software running a database server is to store and retrieve data as requested by the applications.

dBase (also stylized dBASE) was one of the first database management systems for microcomputers and the most successful in its day.

DBOS (Formerly Database-Oriented Operating System, now just DBOS) is an open source durable workflow execution software library written for the Python, TypeScript, Java, and Go programming languages.

Foto N. Afrati is a Greek computer scientist whose research involves distributed computing, distributed database queries, and approximation algorithms, especially using MapReduce.

Xin Luna Dong is a Chinese-American computer scientist and database researcher whose research topics include knowledge graphs, knowledge fusion, and intelligent assistants.

Hosagrahar Visvesvaraya Jagadish (Jag) is a computer scientist, and a leading scholar in the field of data management and database systems research.

Distributed databases

Bigtable is a fully managed wide-column and key-value NoSQL database service for large analytical and operational workloads as part of the Google Cloud portfolio.

Spanner is a distributed SQL database management and storage service developed by Google.

Ailamaki's research interests encompass database systems and applications, with particular emphasis on optimizing database system performance on modern processor architectures and storage technologies.

H2 is a relational database management system written in Java.

Patricia Griffiths Selinger is an American computer scientist and IBM Fellow, best known for her work on relational database management systems.

Together with Michael Stonebraker and a group of scientists at IBM, Wong is credited with pioneering database research in the 1970s from which software developed by IBM, Microsoft, and Oracle descends.

Kersten (October 25, 1953, July 6, 2022) was a computer scientist with research focus on database architectures, query optimization and their use in scientific databases.

Bernstein is a computer scientist specializing in database research in the Database Group of Microsoft Research.

Gerhard Weikum (born September 28, 1957) is a German computer scientist and Research Director at the Max Planck Institute for Informatics in Saarbrücken, Germany, where he is leading the databases and information systems department.

Hellerstein (born 7 June 1968) is an American professor of computer science at the University of California, Berkeley, where he works on database systems and computer networks.

Georg Gottlob FRS is an Austrian-Italian computer scientist who works in the areas of database theory, logic, and artificial intelligence and is Professor of Informatics at the University of Calabria.