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Examining a capability of something to determine its functionality, pros, and cons with respect to a similar alternative.

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When to use NULL and when to use an empty string?

Depends on meanings. Take this example: your column stores what a person said the 12th of August 2020 between 8am and 9am UTC. Chances are that a person said something (non empty string) a person sai …
Riccardo Manfrin's user avatar