surrogate key
71Oracle Database — Developer(s) Oracle Corporation Development status Active Written in …
72Query language — Query languages are computer languages used to make queries into databases and information systems. Broadly, query languages can be classified according to whether they are database query languages or information retrieval query languages. The… …
73Data Manipulation Language — A data manipulation language (DML) is a family of syntax elements similar to a computer programming language used for inserting, deleting and updating data in a database. Performing read only queries of data is sometimes also considered a… …
74XML database — An XML database is a data persistence software system that allows data to be stored in XML format. This data can then be queried, exported and serialized into the desired format. Two major classes of XML database exist: XML enabled: these map all …
75Comparison of relational database management systems — Programming language comparisons General comparison Basic syntax Basic instructions Arrays Associative arrays String operations …
76Comparison of object-relational database management systems — The following Database Management Systems (DBMSs) have at least some object relational features. They vary widely in their completeness and the approaches taken. The following tables compare general and technical information for a number of… …
77Commit (data management) — In the context of computer science and data management, commit refers to the idea of making a set of tentative changes permanent. A popular usage is at the end of a transaction. A commit is an act of committing. Contents 1 Data management 2… …
78Query optimizer — The query optimizer is the component of a database management system that attempts to determine the most efficient way to execute a query. The optimizer considers the possible query plans for a given input query, and attempts to determine which… …
79Distributed database management system — A distributed database management system ( DDBMS ) is a software system that permits the management of a distributed database and makes the distribution transparent to the users. A distributed database is a collection of multiple, logically… …
80Cursor (databases) — In computer science and technology, a database cursor is a control structure that enables traversal over the records in a database. Cursors facilitate subsequent processing in conjunction with the traversal, such as retrieval, addition and… …
