Member Value Expression

<member_value_expression> ::= <member>.{PARENT | FIRSTCHILD | LASTCHILD 
                                        | PREVMEMBER | NEXTMEMBER}
                            | <member>.LEAD(<index>)
                            | <member>.LAG(<index>)

Note   LAG(<index>) is the same as LEAD(–<index>)

 
                            | <member>.{FIRSTSIBLING | LASTSIBLING}
                            | <dimension>.[CURRENTMEMBER]
                            | <dimension>.DEFAULTMEMBER
                            | <hierarchy>.DEFAULTMEMBER
                            | ANCESTOR(<member>, <level>)
                            | CLOSINGPERIOD([<level>[, <member>])
                            | COUSIN(<member>, <member>)
                            | OPENINGPERIOD([<level>[, <member>])
                            | PARALLELPERIOD([<level>[, <index>
                                             [, <member>]]])