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Message Posted: Thu, 29 Jul 1999 @ 18:19:04 GMT


     
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Subj:   Re: How to check the value of a bit in a BYTE field.
 
From:   Glenn McCall

Are you able to redefine your tables so that they are defined using numeric datatypes?

If so, something like this would work for you:

     select cust_id, int_val
     from test
     where ((int_val / (2 ** (3-1))) (INTEGER)) mod 2 = 1
     order by 2

where the number 3 in the where clause is the bit number you wish to test (starting from 1 for the least significant bit).

If you could redefine your tables you may have a new problem in that an INTEGER is only 4 bytes, not 5.


I hope this helps in some small way.

Glenn McCall



     
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