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db\SchemaBuilderTrait primaryKey()

primaryKey() public method (available since version 2.0.6)

Creates a primary key column.

public yii\db\ColumnSchemaBuilder primaryKey ( $length = null )
$length	integer	Column size or precision definition. This parameter will be ignored if not supported by the DBMS.
return	yii\db\ColumnSchemaBuilder	The column instance which can be further customized.

Links:

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

doc_Yii

2016-10-30 16:59:49

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