Grouping Formulas and Calculations

You may achieve significant calculation performance improvements by carefully grouping formulas and dimensions in a calculation script. See:

• Calculating a Series of Member Formulas

• Calculating a Series of Dimensions

Calculating a Series of Member Formulas

When you calculate formulas, be sure to use parentheses correctly.

In the following example, incorrectly placed parentheses causes Essbase to perform two calculation passes through the database: once calculating the formulas on the members Qtr1 and Qtr2; and once calculating the formula on Qtr3:

(Qtr1;
Qtr2;)
Qtr3;

In contrast, the following configurations cause Essbase to cycle through the database only once, calculating the formulas on the members Qtr1, Qtr2, and Qtr3:

Qtr1;
Qtr2;
Qtr3;

or

(Qtr1;
Qtr2;
Qtr3;)

Similarly, the following formulas cause Essbase to cycle through the database once, calculating both formulas in one pass:

Profit = (Sales - COGS) * 1.5;
Market = East + West;

Calculating a Series of Dimensions

When calculating a series of dimensions, you can optimize performance by grouping the dimensions wherever possible.

For example, the following formula causes Essbase to cycle through the database only once:

CALC DIM(Year, Measures);

In contrast, the following syntax causes Essbase to cycle through the database twice, once for each CALC DIM command:

CALC DIM(Year);
CALC DIM(Measures);