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  2. Full table scan - Wikipedia

    en.wikipedia.org/wiki/Full_table_scan

    The cost is predictable, as every time database system needs to scan full table row by row. When table is less than 2 percent of database block buffer, the full scan table is quicker. Cons: Full table scan occurs when there is no index or index is not being used by SQL. And the result of full scan table is usually slower that index table scan.

  3. File:PHP and MySQL Programming.pdf - Wikipedia

    en.wikipedia.org/wiki/File:PHP_and_MySQL...

    PHP and MySQL Programming/Print version - Wikibooks, open books for an open world; Author: hbossot: Image title: File change date and time: 22:12, 9 September 2016: Date and time of digitizing: 22:12, 9 September 2016: Software used: PDFCreator 2.2.2.0: Conversion program: PDFCreator 2.2.2.0: Encrypted: no: Page size: 595 x 842 pts (A4) Version ...

  4. Doctrine (PHP) - Wikipedia

    en.wikipedia.org/wiki/Doctrine_(PHP)

    One of Doctrine's key features is the option to write database queries in Doctrine Query Language (DQL), an object-oriented dialect of SQL. Developers of two major PHP frameworks, Symfony and Laminas have official out-of-the-box support for Doctrine, while 3rd party Doctrine packages are available for Laravel , CodeIgniter and others.

  5. File:PHP Programming.pdf - Wikipedia

    en.wikipedia.org/wiki/File:PHP_Programming.pdf

    English: PDF version of the PHP English wikibook This file was created with MediaWiki to LaTeX . The LaTeX source code is attached to the PDF file (see imprint).

  6. CakePHP - Wikipedia

    en.wikipedia.org/wiki/CakePHP

    The CakePHP ORM uses two primary object types, the table class representing database tables, and entity classes representing individual table rows. [11] Query builder was introduced in CakePHP 3 as a companion to the new ORM. The query builder provides a set of classes and methods for programmatically building SQL queries instead of writing ...

  7. Query language - Wikipedia

    en.wikipedia.org/wiki/Query_language

    A query language, also known as data query language or database query language (DQL), is a computer language used to make queries in databases and information systems. In database systems, query languages rely on strict theory to retrieve information. [1] A well known example is the Structured Query Language (SQL).

  8. Change data capture - Wikipedia

    en.wikipedia.org/wiki/Change_data_capture

    A current version is maintained for the table, or possibly a group of tables. This is stored in a supporting construct such as a reference table. When a change capture occurs, all data with the latest version number is considered to have changed. Once the change capture is complete, the reference table is updated with a new version number.

  9. Data definition language - Wikipedia

    en.wikipedia.org/wiki/Data_definition_language

    In the context of SQL, data definition or data description language (DDL) is a syntax for creating and modifying database objects such as tables, indices, and users. DDL statements are similar to a computer programming language for defining data structures , especially database schemas .