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PostgreSQL includes built-in support for regular B-tree and hash table indexes, and four index access methods: generalized search trees , generalized inverted indexes (GIN), Space-Partitioned GiST (SP-GiST) [42] and Block Range Indexes (BRIN). In addition, user-defined index methods can be created, although this is quite an involved process.
A distributed SQL database is a single relational database which replicates data across multiple servers. Distributed SQL databases are strongly consistent and most support consistency across racks, data centers, and wide area networks including cloud availability zones and cloud geographic zones.
Access Database Engine (formerly known as Jet Database Engine) Proprietary Actian Zen (PSQL) (formerly known as Pervasive PSQL) Proprietary Adabas D: Proprietary Airtable: Proprietary Altibase: Proprietary Amazon Aurora: Proprietary Apache Derby: Apache License 2.0 Apache Ignite: Apache License 2.0 Aster Data Systems: Proprietary CA Datacom ...
DAViCal is a server for calendar sharing. It is an implementation of the CalDAV protocol which is designed for storing calendaring resources on a remote shared server. Although the events are stored in a SQL database the information between client and server is transferred in the iCalendar f
The software was designed to scale for a large number of databases, work across low-bandwidth connections, and withstand periods of network outage. It supports MySQL, Oracle, SQL Server, PostgreSQL, IBM Db2, Firebird, Interbase, HSQLDB, H2, Apache Derby, Informix, Greenplum, SQLite, Sybase ASE, and Sybase ASA.
While netlib's job is to ferry data between the two computers through the underlying network protocol, db-lib provides an API to the client program, and communicates with the server via netlib. db-lib sends to the server a structured stream of bytes meant for tables of data, hence a Tabular Data Stream.
First public release date Latest stable version Latest release date License Public issues list 4D (4th Dimension) 4D S.A.S. 1984 v16.0 2017-01-10 [1] Proprietary: No ADABAS: Software AG: 1970 8.1 2013-06 Proprietary: No Adaptive Server Enterprise: SAP AG: 1987 16.0 SP03 PL07 2019-06-10 Proprietary: No Advantage Database Server (ADS) SAP AG ...
In PostgreSQL, executing DCL is transactional, and can be rolled back. Grant and Revoke are the SQL commands are used to control the privileges given to the users in a Databases SQLite does not have any DCL commands as it does not have usernames or logins. Instead, SQLite depends on file-system permissions to define who can open and access a ...