I thought this time around, we'll discuss how solve order can affect your MDX calculations. I found that people tend to ignore this property, as it is not mentioned in the "Form View" of the Calculation Tab of the cube (which is what people usually tend to use when they write MDX for a cube. I hope this will be taken into consideration in SQL Server 2008). Now, this is a shame, as solve order can greatly affect your calculations. For each calculation you do in MDX, you can specify the optional property...
There are quite a few ways of ways of documenting the changes a business entity goes through over time. The most famous of them all (and the most difficult to build) is a Slowly Changing Dimension (SCD) type 2. doing this in a table, you would create a table which would include: an incremental key, the business key, the attributes you'd like to track for that entity, a start date and an end date (for which the information was right) and a flag which would equal 1 when we are looking at the last...