IS PRESENT

is_present_condition::=

The IS PRESENT condition is relevant only for interrow calculations, and can be used only in the model_clause of a SELECT statement. Use this condition to test whether the cell referenced is present prior to the execution of the model_clause.

Description of the illustration is_present_condition.gif

The condition returns TRUE if the cell exists prior to the execution of the model_clause and FALSE if it does not.

Example

In the following example, if sales of the Mouse Pad for year 1999 exist, then sales of the Mouse Pad for year 2000 is set to sales of the Mouse Pad for year 1999. Otherwise, sales of the Mouse Pad for year 2000 is set to 0.

SELECT country, prod, year, s
  FROM sales_view
  MODEL
    PARTITION BY (country)
    DIMENSION BY (prod, year)
    MEASURES (sale s)
    IGNORE NAV
    UNIQUE DIMENSION
    RULES UPSERT SEQUENTIAL ORDER
    (
      s['Mouse Pad', 2000] =
        CASE WHEN s['Mouse Pad', 1999] IS PRESENT
             THEN s['Mouse Pad', 1999]
             ELSE 0
        END
    )
  ORDER BY country, prod, year;

COUNTRY       PROD                                         YEAR           S
----------    -----------------------------------      --------   ---------
France        Mouse Pad                                    1998     2509.42
France        Mouse Pad                                    1999     3678.69
France        Mouse Pad                                    2000     3678.69
France        Mouse Pad                                    2001     3269.09
France        Standard Mouse                               1998     2390.83
France        Standard Mouse                               1999     2280.45
France        Standard Mouse                               2000     1274.31
France        Standard Mouse                               2001     2164.54
Germany       Mouse Pad                                    1998     5827.87
Germany       Mouse Pad                                    1999     8346.44
Germany       Mouse Pad                                    2000     8346.44
Germany       Mouse Pad                                    2001     9535.08
Germany       Standard Mouse                               1998     7116.11
Germany       Standard Mouse                               1999     6263.14
Germany       Standard Mouse                               2000     2637.31
Germany       Standard Mouse                               2001     6456.13
16 rows selected.

The preceding example requires the view sales_view. Please refer to "Interrow Calculations: Examples" to create this view.