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Get PK Value for unique field value
Message
De
24/09/2004 13:57:55
 
 
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Syntaxe SQL
Divers
Thread ID:
00945785
Message ID:
00945797
Vues:
13
I really don't care if it is the first or last. I really only want one.

>Hi Dan,
>
>You have to define the meaning of "the first PK value" in terms of data in the table. IOW, which field defines the PK order and how.
>
>>I have a table that is using UNIQUEIDENTIFIER pk values. There is another character field that has duplicate values in it.
>>
>>For example (using integer pks for simplicity)
>>
>>
>>PK   Value
>>1    a
>>2    b
>>3    a
>>4    c
>>5    a
>>
>>
>>I want a query that will give me the first PK value for each unique "Value". So I will get back:
>>
>>
>>PK
>>1
>>2
>>4
>>
>>
>>How can I do this?
Thanks,
Dan Jurden
djurden@outlook.com
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