w10schools
Login Register
  • Home
  • Tutorials
    • HTML, CSS
      • HTML, HTML5
      • CSS, CSS3
    • XML
    • JavaScript, AJAX
    • PHP
    • Ruby on Rails
      • Ruby
      • Rails
    • ASP.NET
      • ASP
      • C# .NET
    • Java
      • JSP
    • Databases
      • MySQL
      • MSSQL Server
      • Oracle
    • Web Server
      • Windows
      • Linux
      • Apache
      • IIS
    • Design
      • Dreamweaver
      • Flash
      • Photoshop
      • Fireworks
      • CorelDRAW
      • Illustrator
  • References
    • HTML
      • Bootstrap
    • CSS
      • CSS Selectors
      • Sass
    • JavaScript
    • Mobile Apps
      • Cordova
    • Ruby on Rails
      • Ruby
      • Rails
    • PHP
      • Function
      • Language
      • CodeIgniter
      • Phalcon
      • PHPUnit
      • Symfony
      • Drupal
      • Yii
      • Laravel
    • Perl
      • Perl
    • Python
      • Python
      • Django
      • NumPy
      • Pandas
      • scikit-image
      • scikit-learn
      • Statsmodels
      • Matplotlib
    • Lua
      • Lua
    • C, C++
      • C
      • C++
    • Server
      • Docker
      • Apache HTTP Server
      • Nginx
    • Database
      • PostgreSQL
    • Big Data
      • TensorFlow
    • Game Development
      • Phaser
      • LÖVE
  • Articles
    • News
    • General
      • Website Promotion
      • Online Advertising
      • Make Money Online
    • Editorials
    • Interviews
    • Web Roundups
  • Resources
    • Design
      • Fonts
      • Graphics
      • Vectors
      • Templates
      • UI (User Interface)
      • Brushes
      • Patterns, Backgrounds
      • Textures
    • Web Development
      • HTML, CSS
      • XML
      • JavaScript, AJAX
      • Ruby on Rails
      • PHP
      • Java
      • .NET
      • Python
      • Perl
      • Flash
    • Mobile Application Development
      • Mobile Development Tools
      • Swift
    • Online Services
      • Online Storage
      • Web Hosting
  • Tools
    • Generators
Edit
In Place Editing Advanced Editing
  • References
  • PHP
  • Yii
  • db
  • Command

db\Command dropPrimaryKey()

dropPrimaryKey() public method

Creates a SQL command for removing a primary key constraint to an existing table.

public $this dropPrimaryKey ( $name, $table )
$name string

The name of the primary key constraint to be removed.

$table string

The table that the primary key constraint will be removed from.

return $this

The command object itself

Links:
  • http://www.yiiframework.com/doc-2.0/yii-db-command.html#dropPrimaryKey()-detail
doc_Yii
doc_Yii
2025-01-10 15:47:30
Comments
Leave a Comment

Please login to continue.

Popular Articles
sphinx\Command dropPrimaryKey() dropPrimaryKey() public method Creates a SQL command for removing a primary key constraint to an existing table. public $this dropPrimaryKey (
db\Command $db $db public property The DB connection that this command is associated with public yii\db\Connection $db = null
db\Command batchInsert() batchInsert() public method Creates a batch INSERT command. For example, $connection->createCommand()->batchInsert('user', ['name', 'age'],
db\Command bindParam() bindParam() public method Binds a parameter to the SQL statement to be executed. See also http://www.php.net/manual/en/function.PDOStatement-bind
db\Command queryScalar() queryScalar() public method Executes the SQL statement and returns the value of the first column in the first row of data. This method is best us


Return to View
  • Facebook
  • Tweet
  • Digg it
  • Stumbleupon
  • Delicious
  • Plus Share

Designed by : w10schools

service@w10schools.com

Our Partners: aeeble – Providing content publishing and search solutions