Oracle doesn't allow empty strings either (well, it does but they are the same a... | Hacker News

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		ams6110 on Dec 14, 2016 \| parent \| context \| favorite \| on: DynamoDB cannot store empty strings Oracle doesn't allow empty strings either (well, it does but they are the same as NULL). It's not a big deal if you understand what it's doing.

Animats on Dec 14, 2016 [–]

Strange. MySQL understands both empty strings and NULL, and they are not equivalent. Informix understands empty strings, and IBM mentions that Oracle does not. Microsoft SQL server understands empty strings, but apparently whitespace at the end is truncated in comparisons, so " " is equal to " ".

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