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  2. Operational database - Wikipedia

    en.wikipedia.org/wiki/Operational_database

    Operational databases usually use an online transaction processing database which is optimized for faster transaction processing (create, read, update and delete operations). An operational database is the source for a data warehouse. [1] Data from an operational database can be loaded into an operational data store at a data warehouse before ...

  3. Database transaction - Wikipedia

    en.wikipedia.org/wiki/Database_transaction

    A transactional database is a DBMS that provides the ACID properties for a bracketed set of database operations (begin-commit). Transactions ensure that the database is always in a consistent state, even in the event of concurrent updates and failures. [2]

  4. Operational system - Wikipedia

    en.wikipedia.org/wiki/Operational_system

    An operational system is a term used in data warehousing to refer to a system that is used to process the day-to-day transactions of an organization. These systems are designed in a manner that processing of day-to-day transactions is performed efficiently and the integrity of the transactional data is preserved.

  5. Online transaction processing - Wikipedia

    en.wikipedia.org/wiki/Online_transaction_processing

    Online transaction processing (OLTP) is a type of database system used in transaction-oriented applications, such as many operational systems. "Online" refers to the fact that such systems are expected to respond to user requests and process them in real-time (process transactions).

  6. Database - Wikipedia

    en.wikipedia.org/wiki/Database

    A database transaction is a unit of work, typically encapsulating a number of operations over a database (e.g., reading a database object, writing, acquiring or releasing a lock, etc.), an abstraction supported in database and also other systems. Each transaction has well defined boundaries in terms of which program/code executions are included ...

  7. Transaction processing - Wikipedia

    en.wikipedia.org/wiki/Transaction_processing

    For example, transaction A may access portion X of the database, and transaction B may access portion Y of the database. If at that point, transaction A then tries to access portion Y of the database while transaction B tries to access portion X, a deadlock occurs, and neither transaction can move forward. Transaction-processing systems are ...

  8. Transactional database - Wikipedia

    en.wikipedia.org/wiki/Transactional_database

    Transactional database may refer to: Operational database of customer transactions; Database transaction - a transactional database could be one that is ACID-compliant for each database transaction; Navigational database [citation needed

  9. Online analytical processing - Wikipedia

    en.wikipedia.org/wiki/Online_analytical_processing

    In computing, online analytical processing, or OLAP (/ ˈ oʊ l æ p /), is an approach to quickly answer multi-dimensional analytical (MDA) queries. [1] The term OLAP was created as a slight modification of the traditional database term online transaction processing (OLTP). [2]