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Formula to SHOW duplicated values in a field

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Briana_Wertalik
5 - Automation Enthusiast
5 - Automation Enthusiast

I have the following in a field:

Value 1, Value 2, Value 3, Value 4, Value 5, Value 1, Value 2

I need a formula to show me the repeated values:

Value 1, Value 2

Alternatively, I have another field with the unique values of: 

Value 1, Value 2, Value 3, Value 4, Value 5

So another option could be a formula to compare this field with the original one and output the differences?

 

1 Reply 1
Sho
11 - Venus
11 - Venus

I have an experimental Rollup Field formula.
You cannot use " < > @ , " for values.
Up to 5 types of values (more if you add more rows).

 

 

REGEX_REPLACE(
"@>"&SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(SUBSTITUTE(
ARRAYJOIN(values)&",",
REGEX_EXTRACT(ARRAYJOIN(ARRAYUNIQUE(values)),"([^,]*,?$?){1}"),"<@"& REGEX_EXTRACT(ARRAYJOIN(ARRAYUNIQUE(values)),"([^,]*,?$?){1}") & "@>",2),
REGEX_EXTRACT(ARRAYJOIN(ARRAYUNIQUE(values)),"([^,]*,?$?){2}"),"<@"& REGEX_EXTRACT(ARRAYJOIN(ARRAYUNIQUE(values)),"([^,]*,?$?){2}") & "@>",2),
REGEX_EXTRACT(ARRAYJOIN(ARRAYUNIQUE(values)),"([^,]*,?$?){3}"),"<@"& REGEX_EXTRACT(ARRAYJOIN(ARRAYUNIQUE(values)),"([^,]*,?$?){3}") & "@>",2),
REGEX_EXTRACT(ARRAYJOIN(ARRAYUNIQUE(values)),"([^,]*,?$?){4}"),"<@"& REGEX_EXTRACT(ARRAYJOIN(ARRAYUNIQUE(values)),"([^,]*,?$?){4}") & "@>",2),
REGEX_EXTRACT(ARRAYJOIN(ARRAYUNIQUE(values)),"([^,]*,?$?){5}"),"<@"& REGEX_EXTRACT(ARRAYJOIN(ARRAYUNIQUE(values)),"([^,]*,?$?){5}") & "@>",2)&"<@",
"@>[^<>@]*<@","")