Go from wide-table format to long-table (dynamic)

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I am trying to go from a 'wide-formatted' table see image sample to a 'long-formatted' table see image sample using Google Spreadsheets.

I have created an spreadsheet to re-create the scenario, having this in mind:

  • Data is being updated by users on tab 'wide'
  • Id's can be added at any time (no Ids can be removed)
  • Tags can be replaced, removed or even a new tag can be added (limit is 9 tags)

Test document: https://docs.google.com/spreadsheets/d/1lKAFCON2Bh8n3etGKTEFI3LklGdfMT0wrKm1JyoOHag/edit?usp=sharing

Tab 'wide' has an example of how data is originally formatted. Tab 'long' is the expected output (all id-tags possible unique combinations)

Which is the best approach to get a 'long-table' formatted data that also enables me to capture any update on the original source of data?

Thanks!

google-sheets-query array-formulas google-sheets-formula transpose google-sheets
1 Answers

try:

={"id"\ "tag"; ARRAYFORMULA(SPLIT(QUERY(FLATTEN(
 IF(wide!B2:Z="";;wide!A2:A&"♦"&wide!B2:Z)); 
 "where Col1 is not null"); "♦"))}

enter image description here

user_56326290
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