| abstract public update ( mixed $query, array $options = [] ) : boolean | ||
| $query | mixed | An object which defines the update operation(s) that should be performed against the data store. This can be a `Query`, a `RecordSet`, a `Record`, or a subclass of one of the three. Alternatively, `$query` can be an adapter-specific query string. |
| $options | array | Options to execute, which are defined by the concrete implementation. |
| return | boolean | Returns true if the update operation was a success, otherwise false. |
public abstract function update($query, array $options = array());