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I have column in my database table named 'anwers' of type 'character'. Data may be numbers or strings that's why I used column of type 'character'. And I have to calculate the sum of anweres if it is a numeric. But I found that ISNUMERIC will not work for column type of text/character . How can I solve this issue?

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  • My question is, column type is character but it's not work with isnumeric.But I have to use isnumeric. Commented Jun 29, 2017 at 10:46
  • isnumeric() with PostgreSQL Commented Jun 29, 2017 at 10:48

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In DB2, I've done something like UCASE(answers) = LCASE(answers) to test if it's numeric. This could work if your column is simple letters/numbers, not including punctuation characters.

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