empty spaces at the end?
SELECT email from customer WHERE RIGHT(email, 1) = ' '; ?
Alredy found solution it can be something like update Ware SET article = TRIM(article), barcode = TRIM(barcode) where article=trim(article) and length(article) != length(trim(article)) or barcode=trim(barcode) and length(barcode) != length(trim(barcode)); or regular expression. Thanks.
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