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Type of combination in TSQL

Nyana22
Nyana22 asked
on
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Last Modified: 2012-05-06
Hello,
If I have 4 values : A, B, C and D

I need a TSQL function that generate all the possible combination
of 2 values together.
Each generated record could not have 2 same values,
and the order is not important.

So, for the (A,B,C,D) values the result would be 6 records as the following:
A,B
A,C
A,D
B,C
B,D
C,D

How can i do this??
thanks
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