How to prompt for Prewsentation Variable

Question

Hi Gurus,
I wanted to create a flexible, parametric report fro the TOPN function.
Like this:
TOPN(EMPLOYEES.SALARY,@{p_var}) where p_var is presentation variable.
When I create a Dashboard prompt - where i can use presentation variable- the problem is that i can do it for columns only!
Not for formula.
When I create a column prompt i can create filter for the value of the formula not for the presentation variable.
Any tip appreciated.
Thanks.
Laszlo

Answer 1

Easiest explained with an example XML:
<?xml version="1.0" encoding="UTF-8"?>
<saw:view xmlns:saw="com.siebel.analytics.web/report/v1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="saw:globalFilterPrompt" rptViewVers="200510010" scope="dashboard">
  <saw:prompt type="columnFilter" formula="42" subjectArea="&quot;LOGIC Accounts&quot;" eOperator="in" eControl="drop" includeReportDefaults="true" includeAllChoices="false" columnID="c0" eValues="sql" sql="SELECT CAST(CASE WHEN 1=0 THEN "F1 Revenue"."1-01  Revenue  (Sum All)" ELSE 10 END AS INTEGER) FROM &quot;Sample Sales&quot; UNION ALL SELECT CAST(CASE WHEN 1=0 THEN "F1 Revenue"."1-01  Revenue  (Sum All)" ELSE 25 END AS INTEGER) FROM &quot;Sample Sales&quot; UNION ALL SELECT CAST(CASE WHEN 1=0 THEN "F1 Revenue"."1-01  Revenue  (Sum All)" ELSE 50 END AS INTEGER) FROM &quot;Sample Sales&quot; UNION ALL SELECT CAST(CASE WHEN 1=0 THEN "F1 Revenue"."1-01  Revenue  (Sum All)" ELSE 100 END AS INTEGER) FROM &quot;Sample Sales&quot;" constrainChoices="false" eDefault="specific" default="10" eSetVariable="web" setVariable="vPromptedTopN">
    <sawx:expr xmlns:sawx="com.siebel.analytics.web/expression/v1" xsi:type="sawx:list" op="in">
      <sawx:expr xsi:type="sawx:sqlExpression">1</sawx:expr>
      <sawx:expr xsi:type="sawx:untypedLiteral">10</sawx:expr>
    </sawx:expr>
    <saw:label>
      <saw:caption>
        <saw:text>Show Top</saw:text>
      </saw:caption>
    </saw:label>
  </saw:prompt>
</saw:view>Mind you the best approach still is to have a LOV table holding your TopN values and select from there, but the above works immediately w/o any need for physical objects.
Cheers,
C.