Login Register

db\mysql\QueryBuilder dropPrimaryKey()

dropPrimaryKey() public method

Builds a SQL statement for removing a primary key constraint to an existing table.

public string 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	string	The SQL statement for removing a primary key constraint from an existing table.

Links:

http://www.yiiframework.com/doc-2.0/yii-db-mysql-querybuilder.html#dropPrimaryKey()-detail

doc_Yii

2016-10-30 16:58:29

Comments

Leave a Comment

Please login to continue.

Popular Articles

db\mysql\QueryBuilder insert() insert() public method Creates an INSERT SQL statement. For example, $sql = $queryBuilder->insert('user', [ 'name' => 'Sam', 'age'

db\mysql\QueryBuilder dropForeignKey() dropForeignKey() public method Builds a SQL statement for dropping a foreign key constraint. public string dropForeignKey ( $name, $table )$nam

db\mysql\QueryBuilder renameColumn() renameColumn() public method Builds a SQL statement for renaming a column. public string renameColumn ( $table, $oldName, $newName )$table stri

db\mysql\QueryBuilder $typeMap $typeMap public property Mapping from abstract column types (keys) to physical column types (values). public array $typeMap = [\yii\db\mysql\Sch

db\mysql\QueryBuilder addCommentOnColumn() addCommentOnColumn() public method (available since version 2.0.8) Builds a SQL command for adding comment to column public string addCommentOn