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Encyclopedia > Commit (data management)

In the context of computer science and data management, commit refers to the idea of making permanent a set of tentative changes, such as at the end of a transaction. To commit (changes) is to make tentative changes permanent. A commit is the act of committing. Edsger Dijkstra said: Computer science is no more about computers than astronomy is about telescopes. ... Data management comprises all the disciplines related to managing data as a valuable resource. ... A database transaction is a unit of interaction with a database management system or similar system that is treated in a coherent and reliable way independent of other transactions. ...


A COMMIT statement in SQL ends a transaction within a relational database management system (RDBMS) and makes all changes visible to other users. The general format is to issue a BEGIN WORK statement, one or more SQL statements, and then the COMMIT statement. Alternatively, a ROLLBACK statement can be issued, which undoes all the work performed since BEGIN WORK was issued. A COMMIT statement will also release any existing savepoints that may be in use. Wikibooks has more about this subject: SQL Structured Query Language (SQL) is the most popular computer language used to create, modify and retrieve data from relational database management systems. ... A database transaction is a unit of interaction with a database management system or similar system that is treated in a coherent and reliable way independent of other transactions. ... A relational database management system (RDBMS) is a database management system (DBMS) that is based on the relational model as introduced by Edgar F. Codd. ... A BEGIN WORK statement in SQL starts a transaction within a relational database management system (RDBMS). ... In database technologies, a rollback is an operation which returns the database to some previous state. ...


In terms of transactions, the opposite of commit to discard the tentative changes of a transaction, a rollback. In database technologies, a rollback is an operation which returns the database to some previous state. ...


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  Results from FactBites:
 
Commitment - Wikipedia, the free encyclopedia (304 words)
Involuntary commitment, the practice of using legal means or forms to commit a person to a mental hospital, insane asylum or psychiatric ward against the will or over the protests of that person
Ontological commitment, belief in an ontology in philosophy
Commitment (Computer Science) to concept of commitment is studied in several brances of Computer Science around the notion of something pledged.
7. DATA MANAGEMENT (2075 words)
Data entry should integrate import functions and validation controls, processing should use embedded functions for common procedures, and reporting should be flexible and include an export facility.
Data can be made accessible for analysis through a centralised database, preferably housed at a national institution.
Data exchange is facilitated if national standards and classifications share a common regional or inter-regional set of statistical standards, most specially at higher aggregating levels.
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