Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
Get PK Value for unique field value
Message
De
24/09/2004 14:57:48
 
 
À
24/09/2004 14:21:36
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Syntaxe SQL
Divers
Thread ID:
00945785
Message ID:
00945836
Vues:
20
See my response to Sergey.

>Try something like:
>
>
SELECT Min(pk) as pk, value FROM tablename GROUP BY value
>
>Alan
>
>>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
Précédent
Répondre
Fil
Voir

Click here to load this message in the networking platform