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Former Member

Concatenate Rows excluding null from another column on the same line

Hi

i am trying to concatenate strings from a number of rows but only where another column on the line is not null. Here is below what i have so far

//formula_NameOfPerson
if {job} = "" then "" else {name}
//formula_header

WhilePrintingRecords; 
StringVar Array reset; StringVar Array names:=reset; True; 
//formula_detail

WhilePrintingRecords;
StringVar Array names;
Redim Preserve names[Ubound(names)+1];
names[Ubound(names)]:=trim({@formula_NameOfPerson});
//formula_footer

StringVar Array names;Join(names, ",");
WhilePrintingRecords;

Currently the output is occuring

John,Sarah,,,,,,David,,,,Mike,,,,,,,,Sam,,,

what i want to it output is

John,Sarah,David,Mike,Same

Any advice would be much appreciated.

kind regards

David

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4 Answers

  • Best Answer
    Jan 17, 2017 at 08:47 AM

    Hi David,

    Modify the 'formula_detail' as:

    WhilePrintingRecords;
    StringVar Array names;
    if (NOT isnull({job}) OR {job} <> "") then
    (
      shared numbervar cnt := cnt + 1;
      Redim Preserve names[cnt];
      names[cnt]:=trim({name});
    )

    'Formula_header' would be:

    WhilePrintingRecords; 
    StringVar Array names:='';
    shared numbervar cnt := 0;
    '';

    Formula_footer would be:

    WhilePrintingRecords;
    StringVar Array names;
    Join(names,",");
    

    -Abhilash

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    Former Member
    Jan 18, 2017 at 04:41 AM

    Hi Abihlash,

    Thank you its almost working. The output is comming as John,Sarah,David,Mike,Sam on page 1 but the next pages (groups) the following is occuring

    Page 2 = ,,John,Sarah,David,Mike,Sam

    Page 3 = ,,,John,Sarah,David,Mike,Sam

    Page 4 = ,,,,,John,Sarah,David,Mike,Sam

    It is adding more and more ,,, as each group occurs. Is there a way to reset on each group?

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  • Jan 18, 2017 at 07:30 AM

    Move the 'formula_header' to Group Header.

    -Abhilash

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    Former Member
    Jan 18, 2017 at 08:13 PM

    Hi Abhilash,

    Thank you. My mistake.

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