Solved: Compare 2 WildMatch outputs - Qlik Community

vsabbise · ‎2018-10-12

I am looking for a solution to compare 2 WildMatch outputs in Qlik Sense Expression. In fact a way to code nested WildMatch .

I have my first list of id's generated by first Wildmatch expression And Second list of Id's generated by Second Wildmatch expression

Now I want common Id's from either of the lists

Ex: I want something like below:

=if ( wildmatch(

if(WildMatch(File_Text_2,'$(vFileText2)*'),id_2), if(WildMatch(File_Text,'$(vFileText)*'),id_1)

),id_1)

Explanation:

if(WildMatch(File_Text_2,'$(vFileText2)*'),id_2) : This generates list of id_2

if(WildMatch(File_Text,'$(vFileText)*'),id_1) : This generates list of id

Now I want to list the common id's that are present in both the lists id_2 & Id_1

swuehl · ‎2018-10-15

So basically you have one column with text and one with IDs?

In a filter pane, try something like

=Aggr( Only({<ID = p({<Text = {"$(vText1)*"}>}) * p({<Text = {"$(vText2)*"}>}) >} ID), ID)

Or in a chart expression to get the concatenated common IDs:

=Concat({<ID = p({<Text = {"$(vText1)*"}>}) * p({<Text = {"$(vText2)*"}>}) >} DISTINCT ID,', ')

View solution in original post

swuehl · ‎2018-10-12

Can't really see how one or the other expressions used will create a list of IDs when used in a Qliksense expression.

Can you maybe upload a small sample QVF with some sample records that show your current status?

vsabbise · ‎2018-10-12

Hi Stefan,

Thanks for your response. I am using the expression inside a filter pan to display the list of ID's.

For Example: " =if(WildMatch(File_Text,'$(vFileText)*'),id) " This expression when used in a filter pan lists all the id's in my filter pane when my input box(vFileText) string match with the string present in m field(File_text). Thus I can select/un select the ID's i wanted.

swuehl · ‎2018-10-12

Ok, so you are using these expressions as calculated dimensions.

How does your data model look like? What's the relation between the IDs and the File texts?

vsabbise · ‎2018-10-12

Correct I am using expressions as calculated dimensions. Is there a way to save the output of the expression in a variables and compare and generate a list of common ID's ?

I can literally see what are some of the common ID"s from both the filter panes but wanted to list the common fields.

Regarding Data model, Its a many to many relationship between ID and File Texts.

swuehl · ‎2018-10-12

Ok, but what is the relation between the two ID fields? Are they located in one table or in different tables, linked to each other or unlinked?

vsabbise · ‎2018-10-15

They are in one table. ID_2 is just a duplicate of ID_1. I created a duplicate column wondering it would make my task easier.

prieper · ‎2018-10-15

Think that there is a misunderstanding of the WILDMATCH. Actually this function delivers just one value (or NULL) indication the position of the search-values.

vsabbise · ‎2018-10-15

Thanks Peter.

I was using if(WildMatch(File_Text_2,'$(vFileText2)*'),id_2) expression in the filter pane and I was able to see the list of id_2.

I wonder if the output of WildMatch is either a position/Null then how come the " if statement " is able to convert the output to boolean.

prieper · ‎2018-10-15

Actually do not think that this formula may work.

Can you post some examples please?

If you wish to compare data, you may rather check the EXISTS-function (or probably work with JOINs).

Peter