topic Re: Concatenate variable with a string to obtain another variable in QlikView

Concatenate variable with a string to obtain another variable

Wed, 25 Nov 2020 16:16:04 GMT

I have a function which has 1 parameter:

SUB CalendarFromField(_param1, _param2)

What I am trying to do is concatenate _param with a string to obtain another string variable which I will use as a table name later:

let new_table_name = ['New_table_' & '$(_param1)'];

let resident_table_name = ['Resident_table_' & '$(_param2)'];

[$(new_table_name)]:

noconcatenate LOAD

Resident [$(resident_table_name)]

Order By Date;

The problem is that new_table_name and resident_table_name variables are getting null. Any idea?

sunny_talwar — Sun, 31 Jul 2016 17:52:28 GMT

How about trying this:

LET new_table_name = 'New_table_' & $(_param1);

LET resident_table_name = 'Resident_table_' & $(_param2);

Sun, 31 Jul 2016 18:32:32 GMT

Using below works:

LET new_table_name = 'New_table_' & '$(_param1)';

LET resident_table_name = 'Resident_table_' & '$(_param2)';

both enclosed with single quotes.

Thanks for guide me in the right direction.

sunny_talwar — Sun, 31 Jul 2016 18:36:39 GMT

Awesome, as long as you get what you want

For me, it has always been trial and error in the script with the variables. I never get to be sure what will and what won't work.

Best,

Sunny

Sun, 31 Jul 2016 19:13:32 GMT

Yes, I agree. Me too.

vsabbise — Sat, 01 Dec 2018 00:11:32 GMT

Is there any way to change the color of the substring text using expressions ?