Dimensional prompts

[CognosMarson]

Hi, I stumbled upon this query

tuple(
    currentMember ([Member1]),
    currentMember ([Member2]),
    [Time].[Calendar].[Month]->:[M12].[[Time]].[Calendar]].[Month]].&[201504]]],   
    [Measure]
)

Can someone please explain to me what "->:" and the ".&" do?

/CM

[CognosPaul]

The memberuniquename you posted appears to be from SSAS. The ->: bit separates the key on the right from the hierarchy or level on the left.

The structure changes a bit for each different OLAP solution. In this the ampersand is delineating the actual business key for the month.

[CognosMarson]

Ok, thanks!