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DECODE in SQL Server?"

N
What is the function in SQL that works like DECODE in Oracle?"

Thanks,

N

Jul 20 '05
10 111293
-P-
"DHatheway" <dl********@mmm .com.nospam> wrote in message news:ck******** **@tuvok3.mmm.c om...
"Daniel Morgan" <da******@x.was hington.edu> wrote in message
news:1096932539 .547042@yasure. ..
N wrote:
What is the function in SQL that works like DECODE in Oracle?"
Thanks,

N


As you know CASE is not the same as DECODE ... but SQL Server hsa no
functionality equivalent to DECODE so you will have to adapt CASE to
do the job.
--
Daniel A. Morgan
University of Washington
da******@x.wash ington.edu
(replace 'x' with 'u' to respond)


OK, then, what does DECODE do?

DECODE( exp, search1, result1 [,search2, result2]... ) is semantically equivalent to:

CASE exp
when search1 then result1
when search2 then result2
... END

The difference between CASE and DECODE is that CASE also allows the form:
CASE
WHEN exp1 = search1 then result1
WHEN exp2 = search2 then result2
... END

DECODE can't do that.

--
Paul Horan[TeamSybase]

VCI Springfield, Mass
www.vcisolutions.com

Jul 20 '05 #11

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