Cursor in a MDX expression?

I have a

TABLE A(
 Type INT,
 Value INT
)

Now I want to calculate the difference between the Value of each two subsequent lines of the same Type.

In SQL I'd use a Cursor and make the calculations myself. Is there a more efficient of doing this using a MDX expression (either with a script command or in a calculat开发者_运维百科ed member)?

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This is only going to work on an SQL server that integrates an MDX engine (not the 'classical' other way around). The only one I know where it might work is Oracle, is this your system?

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I don't think MDX is the answer. I'd JOIN the table to itself to create pairs of adjacent rows, and get the difference that way.