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How to remove duplicate characters from a string



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 Just sharing the solution in the Question&Answer way. Maybe it is helpful for some forum members.

This formula helped to remove extra commas from the string:

REPLACE(LTRIM(RTRIM(REPLACE(REPLACE(REPLACE(REPLACE(([@field:field_1] + ',' + [@field:field_2] + ',' + [@field:field_3] + ',' + [@field:field_4] + ',' + [@field:field_5]), ',', '><'), '<>', ''), '><', ','), ',', ' '))), ' ', ',')

The output is the following (Formula_1 field):



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Thank you for sharing this @CoopperBackpack!

I have been trying to utilize this formula on the DataPage as well, however seems that there are some limitations and it works in the Table formula only. 

Here is alternative SQL formula that I have found. It can be used in a Calculated field/value on the DataPage:

COALESCE( NULLIF([@field:A],''), '') + COALESCE(', ' + NULLIF([@field:B],''), '') + COALESCE(', ' + NULLIF([@field:C] ,''), '') + COALESCE(', ' + NULLIF([@field:D],''), '')


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Just an update.

If there are blank values and the output should be a concatenated string with line breaks, it works with the following formula:

COALESCE(NULLIF([@field:A],'')+char(13), '') + COALESCE(NULLIF([@field:B],'')+char(13), '') + COALESCE(NULLIF([@field:C],'')+char(13), '') + COALESCE(NULLIF([@field:D],''), '')


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