Returns the difference between the current value and the value of an earlier period at the same level.
The template presents a measure of the analytic view, an attribute dimension the analytic view is dimensioned by, a hierarchy that uses the attribute dimension, and a number that specifies the offset from the current member. To select a different measure, attribute dimension, hierarchy, or number, click the underlined value in the template and make a selection from the Select Measures dialog box or the drop-down list or enter a different number value.
Template
Difference from prior period for the measure name measure for the attribute dimension alias attribute dimension and the hierarchy alias hierarchy for the number period ago.
Example: Example of Difference from Prior Period
The sales_chg_prior_period calculated measure calculates the difference between the measure value for the current member and the measure value for the hierarchy member that is one member before the current member at the same level.
Calculation in Template
Difference from prior period for SALES in TIME_ATTR_DIM and TIME_HIER hierarchy 1 period ago.
Definition of Calculated Measure in Analytic View
The MEASURES clause of the SALES_AV analytic view definition includes this definition of the sales_chg_prior_period calculated measure:
sales_chg_prior_period AS LAG (SALES) OVER (HIERARCHY TIME_HIER OFFSET 1)
SELECT Statement Using the Calculated Measure
Query the analytic view, selecting sales and sales_chg_prior_period values.
SELECT time_hier.member_name as TIME,
sales,
sales_chg_prior_period
FROM
sales_av HIERARCHIES(time_hier)
WHERE time_hier.level_name IN ('YEAR','QUARTER')
ORDER BY time_hier.hier_order;
Results of the Query
TIME SALES SALES_CHG_PRIOR_PERIOD -------- ---------- ---------------------- CY2011 6755115981 (null) Q1CY2011 1625299627 (null) Q2CY2011 1715160208 89860580.7 Q3CY2011 1691017693 -24142515.1 Q4CY2011 1723638452 32620759.5 CY2012 6901682399 146566418 Q1CY2012 1644857783 -78780669.2 Q2CY2012 1752414182 107556399 Q3CY2012 1732373412 -20040770.2 Q4CY2012 1772037022 39663610.4 CY2013 7240938718 339256319 Q1CY2013 1723571458 -48465564.6 Q2CY2013 1840985832 117414375 Q3CY2013 1821918664 -19067168.9 Q4CY2013 1854462764 32544100.5 CY2014 7579746353 338807635 Q1CY2014 1809855822 -44606941.6 Q2CY2014 1929427229 119571406 Q3CY2014 1900013511 -29413717.6 Q4CY2014 1940449791 40436279.7 CY2015 7941102885 361356532 Q1CY2015 1908099573 -32350218 Q2CY2015 2018132033 110032460 Q3CY2015 1989225699 -28906334.2 Q4CY2015 2025645581 36419882.4