| public alterColumn ( string $table, string $column, string $type ) | ||
| $table | string | the table whose column is to be changed. The table name will be properly quoted by the method. |
| $column | string | the name of the column to be changed. The name will be properly quoted by the method. |
| $type | string | the column type. [[\yii\db\QueryBuilder::getColumnType()]] will be called to convert the give column type to the physical one. For example, `string` will be converted as `varchar(255)`, and `string not null` becomes `varchar(255) not null`. |
public function alterColumn($table, $column, $type)
{
$sql = $this->db->getQueryBuilder()->alterColumn($table, $column, $type);
return $this->setSql($sql)->requireTableSchemaRefresh($table);
}