NOT IN function of MySQL not working in Magic Transform MySQL of DOMO.
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Hi LokeDomo,
It sounds like you have a text column that should contain only numbers, but there are some rows where that field contains non-numbers. And you're trying to filter out or perhaps nullify the non-number rows. Is that correct?
You can use regular expressions to check for letters as below:
SELECT
`RecordID`,
`NumberAsText`,
`NumberAsText` regexp '^[0-9]+$',
cast(case when `NumberAsText` regexp '^[0-9]+$' = 1 then `NumberAsText` end as signed) as `NumberAsNumber`
from `numberastext`In the above snippet, `NumberAsText` regexp '^[0-9]+$' checks to see if NumberAsText contains ONLY numerals 0 to 9 and returns 1 if so. In the last colum above, I check to see if the field contains only numbers and return the number if so; otherwise, return NULL. And finally cast as a signed integer.
Hope that helps.
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