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NOT Operator at SAS BASE 9.4

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NOT Operator at SAS BASE 9.4

Hello everybody.


IS it possible to combine the WHERE and NOT statement with operator IS NULL or IS MISSING?

IN Base 9.2, it isnt. But I did try it and it works. Please help me.


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Posts: 1,245

Re: NOT Operator at SAS BASE 9.4

Hello @cons,


Yes, you can combine the NOT operator with the IS NULL or IS MISSING operator in a WHERE statement.


I don't see a difference between the tables of WHERE statement operators for SAS 9.2 and SAS 9.4. There can be no doubt that a combination as in

where not (x is null);

is valid. Even the notation

where x is not null;

works and it is mentioned in the section "Use of Indexes" of the WHERE statement documentation of both SAS 9.2 and 9.4 (see links above).

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