Update between-transact-sql.md #9996
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The statement that if any part is `NULL` the overall expression evaluates to `UNKNOWN` is not correct. Counter example ``` SELECT 1 WHERE NOT 2 BETWEEN NULL AND 1 ``` Because that is equivalent to ``` 2 >= NULL AND 2 <= 1 ``` or ``` UNKNOWN AND FALSE ``` Which is `FALSE`
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The statement that if any part is
NULLthe overall expression evaluates toUNKNOWNis not correct.Counter example
Because
2 BETWEEN NULL AND 1is equivalent toor
Which is
FALSE(so
TRUEwhen negated withNOT)