O'Reilly logo

Mastering QlikView by Stephen Redmond

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Applying variables and the Dollar-sign Expansion in the script

We had a good discussion in Chapter 5, Advanced Expressions, on how to use variables with the Dollar-sign Expansion. Variables are so important to what we do in the script that it is worth just briefly reviewing the topic from a script point of view.

Variables can be assigned in the script using either a Set or Let statement.

A Set statement will assign the text on the right-hand side of the statement to the variable. A Let statement will try and evaluate the text on the right-hand side as an expression and will assign the result of that evaluation (which might be null!) to the variable. For example:

Set v1=1+1;

This will result in the v1 variable that contains the value 1+1. Consider ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required