enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Record locking - Wikipedia

    en.wikipedia.org/wiki/Record_locking

    This prevents records from being overwritten incorrectly, but allows only one record to be processed at a time, locking out other users who need to edit records at the same time. To allow several users to edit a database table at the same time and also prevent inconsistencies created by unrestricted access, a single record can be locked when ...

  3. Table data gateway - Wikipedia

    en.wikipedia.org/wiki/Table_Data_Gateway

    Table Data Gateway is a design pattern in which an object acts as a gateway to a database table. [1] The idea is to separate the responsibility of fetching items from a database from the actual usages of those objects. Users of the gateway are then insulated from changes to the way objects are stored in the database.

  4. Create, read, update and delete - Wikipedia

    en.wikipedia.org/wiki/Create,_read,_update_and...

    CRUD is also relevant at the user interface level of most applications. For example, in address book software, the basic storage unit is an individual contact entry. As a bare minimum, the software must allow the user to: [6] Create, or add new entries; Read, retrieve, search, or view existing entries; Update, or edit existing entries

  5. Unit of work - Wikipedia

    en.wikipedia.org/wiki/Unit_of_work

    A unit of work encapsulates one or more code repositories and a list of actions to be performed which are necessary for the successful implementation of self-contained and consistent data change. A unit of work is also responsible for handling concurrency issues, [3] [4] and can be used for transactions [3] [4] and stability patterns. [5]

  6. MySQLi - Wikipedia

    en.wikipedia.org/wiki/MySQLi

    PHP version introduced: 5.0: 5.0: pre-3.0 Included with PHP 5.x: Yes: Yes: Yes Included with PHP 7.x: Yes: Yes: No Development status: Active development: Active development as of PHP 5.3: Deprecated as of PHP 5.5 Removed in PHP 7.0 Recommended by MySQL for new projects: Yes - preferred option: Yes: No API supports Charsets: Yes: Yes: No API ...

  7. View (SQL) - Wikipedia

    en.wikipedia.org/wiki/View_(SQL)

    For example, a view could appear as Sales2020 or Sales2021, transparently partitioning the actual underlying table. Views take very little space to store; the database contains only the definition of a view, not a copy of all the data that it presents. Views structure data in a way that classes of users find natural and intuitive. [2]

  8. Codd's 12 rules - Wikipedia

    en.wikipedia.org/wiki/Codd's_12_rules

    Users should always get the impression that the data is located at one site only. Rule 12: The nonsubversion rule : If a relational system has a low-level (single-record-at-a-time) language, that low level cannot be used to subvert or bypass the integrity rules and constraints expressed in the higher level relational language (multiple-records ...

  9. Category:Articles with example PHP code - Wikipedia

    en.wikipedia.org/wiki/Category:Articles_with...

    This category is not shown on its member pages unless the appropriate user preference (appearance → show hidden categories) is set. Pages in category "Articles with example PHP code" The following 35 pages are in this category, out of 35 total.