Hi,
Could some one please explain me the exact difference between NULL and Empty values for a field from a database perspective ? I do understand the concept that NULL is absence of a value and empty is a value but just empty. But I am trying to get a conceptual understanding as to how database stores these values and are they both treated differently.
I am also trying to understand if empty can be quantified as '' ? Is it Valid to attribute this expression to empty ?
I have tried reading about this at various places but i still end up getting a vague idea. Any help towards helping understand this issue could be great.
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