Databases

Solr

A scalable Apache platform for searches of data stored, used for full-text search, hit highlighting, dynamic clustering, database integration, has NoSQL features and rich document handling.

Spanner

Google's globally distributed NewSQL database. Designed to distribute data at global scale and support externally-consistent distributed transactions. 

Sphinx

SQL Phrase Index is a full text search server that enables to batch index and searches data stored in the SQL databases, NoSQL storages, API for common web programming languages or just files quickly and easily.

SQL

Structured Query Language is a programming language used to create, modify, and manage data in a relational database managed by an appropriate database management system.

SQL Server AlwaysOn

SQL Server AlwaysOn provides a high-availability and Disaster-recovery solution for SQL Server 2012. It makes use of existing SQL Server features, particularly Failover Clustering, and provides new capabilities such as availability groups.

SQL Server

A RDBSM built for the basic function of storing retrieving data as required by other applications, that can respond to queries from client machines formatted in the SQL language. 

SQLite

A relational database management system contained in a C programming library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine.

Sqlmap

A penetration SQL testing tool that automates the process of identifying and exploiting SQL injection vulnerabilities and capturing database servers. It comes with a powerful detection engine and many niche functions for the ultimate penetration tester.

SSAS

SQL Server Analytic Services. Technology from the Microsoft Business Intelligence stack. Provides online analytic processing (OLAP) of data from disparate data sources.

T-SQL

Transact-SQL is a procedural extension of the SQL language created by Microsoft and Sybase. The Transact-SQL language is the key to using MS SQL Server. All applications that interact with the instance of MS SQL Server, regardless of their implementation and user interface, send the Transact-SQL instruction to the server.

Teradata

A Relational Database Management System used for large data warehousing applications, handling large volumes of data, it is highly scalable. This is a large database server that interacts with multiple clients via TCP / IP or through a connection to an IBM mainframe channel.

Toad

A database development and management tool used for managing relational and non-relational databases using SQL. It supports Oracle Database, Microsoft SQL Server, Adaptive Server Enterprise, DB2, MySQL.

Voldemort

A distributed data store that is designed as a key-value store used by LinkedIn for high-scalability storage. It is neither an object database, nor a relational database. It does not try to satisfy arbitrary relations and the ACID properties, but rather is a big, distributed, fault-tolerant, persistent hash table.