topic Re: Expression in TRACE? in QlikView

Expression in TRACE?

Saravanan_Desingh — Wed, 25 Nov 2020 16:16:04 GMT

I would like to clarify this query.

Can't I use Expressions in Trace as below?

Trace P=$(=Pick(3,$(vYesNo)));

Trace T=$(=Today());

I was able to do it thru Variables. But thought of verifying on this.

Re: Expression in TRACE?

sunny_talwar — Wed, 30 Mar 2016 01:38:16 GMT

I think you are right, it seems that only variables are working with TRACE, unless it is a plan text

Re: Expression in TRACE?

Saravanan_Desingh — Wed, 30 Mar 2016 01:40:18 GMT

Hi Sunny,

I just want to trace few outputs in the Script.

Instead of defining a temp variable and displaying it in Trace, I tried giving the expression directly in the Trace and was expecting the result.

But it returns null.

Thanks for your confirmation, Sunny.

Re: Expression in TRACE?

engishfaque — Wed, 30 Mar 2016 03:28:43 GMT

Dear Saran7de,

Trace with variable return variable value.

Trace with without variable return value as a string.

Kind regards,

Ishfaque Ahmed

Re: Expression in TRACE?

Saravanan_Desingh — Wed, 30 Mar 2016 11:57:06 GMT

Thank you for the response, Ishfaque Ahmed

Re: Expression in TRACE?

swuehl — Wed, 30 Mar 2016 12:08:18 GMT

As far as I know, the dollar sign expansion with expression can't be used anywhere in the script, hence it can't be used in TRACE statements neither.

I think it's a front end thing only.

Re: Expression in TRACE?

Saravanan_Desingh — Wed, 30 Mar 2016 14:59:59 GMT

Thank you, Stefan.

I just realized, I was trying dollar-expansion in Trace.

Re: Expression in TRACE?

swuehl — Fri, 01 Apr 2016 16:18:14 GMT

saran7de wrote:

Thank you, Stefan.

I just realized, I was trying dollar-expansion in Trace.

Just to clarify:

A dollar sign expansion of a variable is working in the script in general, but I believe the dollar sign expansion with expression is not working in the script.

Re: Expression in TRACE?

Saravanan_Desingh — Fri, 01 Apr 2016 16:35:40 GMT

Thank you swuehl

Re: Expression in TRACE?

flagamba — Wed, 03 Aug 2022 09:21:24 GMT

Hello, thank you for your reply, but after several searches I can not find where the scope of the dollar sign expansion is defined. This seems to me unfortunately as a problem of the documentation that it would be good to review. Thank you for your attention.

Re: Expression in TRACE?

flagamba — Mon, 12 Sep 2022 13:55:03 GMT

Same results, unfortunately ...