Qlikview iterate result set of temp table using forloop - qlikview

Question

I want to iterate the ResultSet of a TempTable.
For eg:
MyTmpTable:
set emails = 'abc#xyz.com','qwe#xyz.com','asd#xyz.com';
for each mail in $(emails)
//Api call with Id https://myapiurl/$(mail)
next
This works fine. We tested with hard-coded emails
MyTmpTable:
Load emails from Employee;
for each mail in $(emails)
//Api call with Id https://myapiurl/$(mail)
next
But we want to iterate with dynamic emails. So tried the above code but its throwing QVD UNEXPECTED END OF DATA Error
Again tried with the below code
MyTmpTable:
Load emails from Employee;
for each mail in FieldValueList('emails')
//Api call with Id https://myapiurl/$(mail)
next
This time loop works fine but getting the same error QVD UNEXPECTED END OF DATA Error on API call
Whats wrong with this implementation?

Answer 1

Try building the list in the variable first, then it sould behave like the hardcoded list. chr(39) is just a trick to insert ' without creating a text escape in the initial declaration
EMAIL_LIST:
load
concat(emails,chr(39)&','&chr(39)) as Email_List
Resident employees
;
let zEmailList = chr(39)&fieldvalue('Email_List',1)&chr(39)
;
drop table EMAIL_LIST
;
for each mail in $(zEmailList)
trace $(mail);
//Api call with Id https://myapiurl/$(mail)
next mail