|Oracle® OLAP DML Reference
10g Release 1 (10.1)
Part Number B10339-02
You can save an expression in a formula. Frequently, you define a formula for ease of use and to save storage space. Once you have defined a formula for an expression, you can use the name of the formula takes the place of the text of the expression. Oracle OLAP does not store the data for a formula in a variable; instead it is calculated at runtime each time it is requested.
Before you create a formula, decide whether you want to specify the expression when you first define the formula object or whether you want to specify the expression for the formula after you define the formula object:
When you decide to specify the expression when you first define the formula object, then:
When you decide to specify the expression for the formula after you define the formula object, then:
Issue a DEFINE FORMULA statement to define the formula object. Specify values for the
dimensions arguments, but do not specify a value for the expression, itself.
Issue a CONSIDER statement to make the formula the current definition.
Issue an EQ statement to specify the expression for the formula.
(Optional) Issue a COMPILE statement to compile the formula.
For example, you can define a formula to calculate dollar sales, as follows.
DEFINE dollar.sales FORMULA units * price