What does 0 mean in SQL?

Question

“Every [SQL] data type includes a special value, called the null value,”0 “that is used to indicate the absence of any data value”.1. The null value does not indicate why a value is absent—it simply marks the places that do not have a data value.

What does <> indicate in SQL?

<> is standard ANSI SQL and stands for not equal or != .

Are <> and != The same?

Here is the answer – Technically there is no difference between != and <>. Both of them work the same way and there is absolutely no difference in terms of performance or result.

Is not vs <> in SQL?

In terms of performance , the two queries almost the same. if you can check the actual execution plan in SQL Server, there is no difference of the two query. NOT is a negation and the other (<>) is an operator used for comparison.

IS NULL less than 0 in SQL?

NULL > 0 will eventually evaluate to false but as @Pred points out that is because Null > 0 actually evaluates to null and null cast to a bit is false.... A null is an unknown and therefore any comparison with it is also unknown.

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