Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
Sql command to exclude records
Message
 
À
19/07/2000 07:15:07
Mark Hall
Independent Developer & Voip Specialist
Keston, Kent, Royaume Uni
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
00394238
Message ID:
00394534
Vues:
10
Mark, thaks for the reply. Sounds like what I am lookinf for and I'll give it a try.

Gerard


>>I need to run a SQL statement which selects all records from File1 ,but excludes any records where there is a link to a second file based on one of the fields:
>>
>>In simple terms:
>>
>>e.g. File 1: F1_code,F1_Name
>> File 2: F2_Code
>>
>>
>>Select * from File1 where (F1_code does not already exist in File2)
>>
>>Is there a way of doing this in SQL. I tried using a where Seek(..) = .F. but know from past experience that its a bit dicey using functions inside a SQL statement
>>
>>Regards,
>>
>>Gerard
>
>HI,
>
>SELECT * FROM File1 WHERE F1_code NOT IN (SELECT DISTINCT F2_Code FROM File2)
Précédent
Répondre
Fil
Voir

Click here to load this message in the networking platform