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Joined 1 year ago
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Cake day: June 30th, 2023

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  • At the (SQL) database level, if you are using null in any sane way, it means “this value exists but is unknown”.

    Null at the SQL means that the value isn’t there, idk where you’re getting that from. SQL doesn’t have anything like JS’s undefined, there’s no other way to represent a missing value in sql other than null (you could technically decide on certain values for certain types, like an empty string, but that’s not something SQL defines).





  • Using something like DOS is neither preferred nor more safe. Last time MS DOS received a security patch was 23 years ago. It’s open to pretty much any security vulnerability you can think of. In case you depend on a DOS app it’s preferable to run it on a modern OS that is DOS compatible, windows 10 32bit for example (I believe Win11 still has support). Or even better sandboxed in an emulator like DOSBox on a more secure OS.