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db\ColumnSchemaBuilder first()

first() public method (available since version 2.0.8)

Adds an FIRST constraint to the column.

Note: MySQL, Oracle and Cubrid support only.

public $this first ( )

Links:

http://www.yiiframework.com/doc-2.0/yii-db-columnschemabuilder.html#first()-detail

doc_Yii

2016-10-30 16:57:14

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