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You can set up a presentation variable:

• only through the user interface
• programmatically with javascript is not yet supported

And you can use it then in many places : OBIEE - Where can I use a presentation variable ?

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Syntax

@{MyPresentationVariable}{MyDefault Value}

Example

@{myYear}{max(Time.Year by)}

Which means:

• use the presentation variable myYear
• and if it's not yet set then use as default the maximum year of the data set.

Multiple value / select

• OBIEE 10g: You cannot set a Presentation Variable in a Multi Select dashboard prompt in OBIEE 10g. This is expected behavior. OBIEE 10g is working as designed. A Presentation variable can assume a single value. Because of that, presentation variables are not available when using multi select prompts. See note 965224.1
• OBIEE 11g will introduce the ability to set Presentation Variables when using multi select prompts. In 10g you can try as a workaround using more than 1 prompt.