Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
What is wrong with this SQL Select?
Message
 
 
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Autre
Divers
Thread ID:
01424146
Message ID:
01425439
Vues:
29
>>>>Hi,
>>>>
>>>>I sense this there is something real simply I am missing in the following SQL Select but I don't seem to be understand it.
>>>>
>>>>I am trying to select one record from a Company table and one record from a Contact table (related to Company by column COMP_PK). But I get a NULL in column LASTNAME. Here is my SQL Select:
>>>>
>>>>
>>>>select C1.*, C2.LASTNAME from COMPANY C1 LEFT JOIN ( select top 1 LastName, comp_pk from 
>>>>CONTACT order by OrderNo ) C2 on C1.comp_pk = C2.comp_pk where 1=1
>>>>
>>>>
>>>>What is wrong with my SQL Select?
>>>
>>>Have you considered using a function to get the Contact information? That would avoid the headache of the join and would let you re-use that code for other queries.
>>
>>I am not sure what you mean by "using a function". If you are referring to a VFP function than I can't. I have to pass the entire SQL Select to SQL Server and passing VFP function won't work.
>
>Dmitry,
>
>This is what Linda meant:
>
>
>create function GetContactName (@Comp_pk int) return varchar(30)
>as
>  begin
>   declare @ContactName varchar(30)
>    select top 1 @ContactName = LastName from Contact where Comp_pk = @Comp_pk Order by OrderNo
>   return @ContactName
> end
>
>And to use it
>
>
>select C1.*, dbo.GetContactName(C1.Comp_pk) as Contact from Company
Ok. Thanks.
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham
Précédent
Suivant
Répondre
Fil
Voir

Click here to load this message in the networking platform