I am trying to use isnull() and isblank() but they seem to always return false. Why?

I am trying to use isnull() and isblank() but they seem to always return false. Why?

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Article ID: KB0088089

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Updated On:

Products Versions
TIBCO MessageBroker -
Not Applicable -

Description

Resolution:
- isblank() will return true if the string is null or has zero characters in it.
- If the string that you pass into isblank() has a space in it, for example " ", then isblank() will return false.  In this case, you should use an istrim() before calling isblank() to remove blank spaces
- isnull(x) returns true when x is null.

If you are still having problems, please email your MB transform to support@tibco.com with a detailed description of the problem.

Environment

Product: TIBCO MessageBroker Version: 4.1, 3.2.1.6 OS: All --------------------

Issue/Introduction

I am trying to use isnull() and isblank() but they seem to always return false. Why?
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