If a field is defined as alphanumeric, are spaces and underscores (_) allowed?
I hope they are not.
Can anyone confirm?
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If a field is defined as alphanumeric, are spaces and underscores (_) allowed?
I hope they are not.
Can anyone confirm?
Alphanumeric characters by definition only comprise the letters A to Z and the digits 0 to 9. Spaces and underscores are usually considered punctuation characters, so no, they shouldn’t be allowed.
If a field specifically says “alphanumeric characters, space and underscore”, then they’re included. Otherwise in most cases you generally assume they’re not.