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I have different numbers in attribute table to which I would like to automatically assign the same letter "E". I am using QGIS and I have tried using the field calculator but it did not work.

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    Well... what exactly have you tried? How does your data look currently, and how should the outcome look like? Which field type does your data have?
    – Erik
    Feb 2 at 12:31
  • i have used string data to allow both numbers and letters in one column of my attribute table. For example I have different numbers 1200, 1288, 1258 and I would to assign the same letter E ( 1200E,1288E,1258E). Currently, I am doing it manually but it is hectic since I have a lot of different numbers. can I add the same letter E to different numbers automatically?
    – do23
    Feb 2 at 12:44
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    @do23 it would be better to add this additional information to your initial post (click Edit to do so)
    – Babel
    Feb 2 at 13:13

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Open the attribute table, click Field Calculator, add a new field. Replace "id" with the name of your existing field. Expression:

concat("id", 'E')

enter image description here

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