function prefix( $name = '' ) {
		return is_object( $this->parent ) ? $this->parent->prefix( $name ) : $name;
	}
function prefix( $name = '' ) {
		return is_object( $this->parent ) ? $this->parent->prefix( $name ) : $name;
	}
function prefix ( $ name = '' ) { return is_object ( $ this -> parent ) ? $ this -> parent -> prefix ( $ name ) : $ name ; }
Returns the prefix set by the ranking ancestor of the database object.

@param string $name Prefix string.
@return string Prefix.
Returns the prefix set by the ranking ancestor of the database object .