MDX Tuple Value Expressions

OLE DB Programmer's Reference

The construct of the tuple value expression is as follows:

<tuple_value_expression> ::= <set>.CURRENTMEMBER                            | <set>[.ITEM]({<string_value_expression>                                        [, <string_value_expression>...]}                                        | <index>)

The following table describes the tuple value expressions.

Element	Description
<set>.CURRENTMEMBER	Gives the current tuple in <set>. The concept of "currency" occurs in functions such as GENERATE, where the semantics include some form of iteration through tuples of a set.
<set>[.ITEM](<string_expression> [, <string_expression>...] | <index>)	Returns a tuple from <set>. The <string_expression> [, <string_expression>...] specifies which tuple to retrieve. The <index> value specifies the position of the tuple in <set>. The numbering of the tuples is zero-based.

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