Well known DBMSs include Oracle, IBM DB2, Microsoft SQL Server, Microsoft Access, PostgreSQL, MySQL, and SQLite.

Some general-purpose DBMSs, like Oracle, Microsoft SQL Server, and IBM DB2, have been undergoing upgrades for thirty years or more.

Even Microsoft SQL Server is actually a re-built version of Sybase, and thus, INGRES.

This method is often implemented in SQL as indexed views ( Microsoft SQL Server ) or materialised views ( Oracle ).

Microsoft announced that they have discontinued the separate release of WinFS for Windows XP and Windows Vista and will gradually incorporate the technologies developed for WinFS in other products and technologies, notably Microsoft SQL Server.

* Multiple Active Results Sets, a technique used within Microsoft's SQL Server database management system to enable database connections to be used for multiple purposes

SQL Server may refer to:

* Microsoft SQL Server, a relational database server from Microsoft

* Sybase SQL Server, a relational database server developed by Sybase

* SQL Server ( magazine ), a trade publication and web site owned by Penton Media

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* January 1 – Minimum date value for a datetime field in SQL Server ( up to version 2005 ) due to it being the first full year after Britain adopted the Gregorian calendar.

As Palm has no connection drivers that enable the transfer of data with a server DBMS ( Oracle, mySQL, MS SQL Server ), the programmer can use Middleware software that enables this connectivity.

Database management tools include support for MySQL, SQL Server, DB2, Sybase, and Oracle.

2003 – Quest officially entered the Microsoft SQL Server market, and IDC named Quest # 1 in distributed database management software.

The company acquired Imceda Software that year to add SQL Server backup and recovery capabilities, and Vintela for identity management.

* Freeware edition of Toad-Oracle, SQL Server, DB2 & MySQL

Subsequent multi-user versions were tested by customers in 1978 and 1979, by which time a standardized query language – SQL – had been added.

1996 – Quest entered the database management market with an Oracle SQL database tuning product ;

SQL –

SQL slammer worm –

IDC's Worldwide Database Management Systems 2009 – 2013 Forecast and 2008 Vendor Shares ranks Oracle database as the leader in DBMS marketing share, followed by IBM DB2 and then Microsoft SQL Server.

In 1995 – 1997, Tandem partnered with Microsoft to implement high-availability features and advanced SQL configurations in clusters of commodity Windows NT machines.

When Borland eventually sold its Quattro Pro and Paradox products to Novell, where they would be joined with Word Perfect in an attempt to match Microsoft Office, Borland was left with InterBase, which Esber had purchased in the late 1980s and had its origins as a derivative of the RDB database work at DEC. Borland's ongoing strategy was to refocus its development tools on the corporate market with client – server applications, so Interbase fitted in as a low-end tool and a good generic SQL database for prototyping.

* Raymond F. Boyce ( 1947 – 1974 ), co-inventor of relational database query language SQL

This may or may not affect behavior in the applications layer, depending largely on whether the data manipulation language or protocol has changed – but modern applications are written to be agnostic to the database technology so that a change from Sybase, MySQL, DB2 or SQL Server to Oracle should only require a testing cycle to be confident that both functional and non-functional performance has not been adversely affected.

The initial release of MSDE is called the " Microsoft Desktop Engine ", which is based on SQL Server 7. 0 and was positioned as an alternative to using Microsoft Access's Microsoft Jet Database Engine with a focus on its ability to operate as a client – server application instead of requiring direct access to the file system which the Jet database resided on.

* ij – a tool that allows SQL scripts to be executed against any JDBC database.

The database access is entirely abstracted from the programmer's point of view and Catalyst, through one of its model classes, handles access to all databases automatically – though, if needed, using direct SQL queries is possible.

The dominant database language is the standard SQL for the Relational model, which has influenced database languages also for other data models.

In the 1980s it has adopted the Relational model and SQL in addition to its original tools and languages.

In the 1980s it has adopted the Relational model and SQL in addition to its original tools and languages.

Relational database theory uses a set of mathematical terms, which are roughly equivalent to SQL database terminology.

* SQL and Relational Theory, 2nd Edition: How to Write Accurate SQL Code, ISBN 1-4493-1640-9

Though Dataphor espouses to be truly relational, it does incorporate the concept of NULLs as found in SQL, which many claim to be contraindicated by the Relational Model.

Interactive access to the Oracle Rdb can be by SQL ( Structured Query Language ), RDO ( Relational Database Operator ), or both.

Date's SQL and Relational Theory uses this painting in a discussion about the differences between tables and relations.

Relational database management systems such as IBM DB2, Informix, Microsoft SQL Server, Oracle 8, Sybase ASE, and SQLite support this type of tree for table indices.

Ultimately the XQJ API is to XML Databases and XQuery as the JDBC API is to Relational Databases and SQL.

While searches themselves were tuned at the SQL ( Structured Query Language ) level, additional indexes on the RDBMS ( Relational database management system ) tables were deployed.

Codd indicated in his 1990 book The Relational Model for Database Management, Version 2 that the single Null mandated by the SQL standard was inadequate, and should be replaced by two separate Null-type markers to indicate the reason why data is missing.