NULL values
Asked by
Federico
In MySQL, UNKNOWN is a synonym for NULL. In my understanding, NULL could be an unknown value, but even a value which doesn't exists; while the word UNKOWN makes me think that the value exists.
But if the value exists, some expressions should give a result which is not NULL (or UNKNOWN):
a = UNKNOWN;
-> a<=100 OR a>100 should return TRUE
-> a * 0 should return 0
-> a - a should return 0
Will Drizzle ever consider solving this problem implementing a real UNKNOWN value?
I hope this is the right place for questions like this.
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- English Edit question
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- Solved
- For:
- Drizzle Edit question
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- Solved by:
- Roland Bouman
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