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Question on the VFP 9 group by
Message
 
À
06/04/2006 14:09:19
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 9 SP1
OS:
Windows XP SP2
Network:
Windows 2000 Server
Database:
Visual FoxPro
Divers
Thread ID:
01111136
Message ID:
01111140
Vues:
17
>>I need to find the employee id for the employee that has the most hours for each given work type.
>>
>>In VFP 6 the following SQL Select would work fine:
>>
SELECT  worktype, MAX(asgnhrs), emplid FROM john GROUP BY worktype
>>
>>In VFP 9 I am trying to do things the new way without useing the set enginebehavior 70 command. Of course this generates the "Invaid Group By" error becuase I have not included the emplid in the group by. But, if I did, I would get all the emplyees. What do I need to change to get only the emplyee id with the max hours?
>>TIA.
>
>You must include all the fields in the group by list
>>
SELECT  worktype, MAX(asgnhrs), emplid FROM john GROUP BY 1,2,3worktype
>or
>>
SELECT  worktype, MAX(asgnhrs) as maxasg, emplid FROM john GROUP BY worktype,maxasg,emplid
Tori,
Thanks for the reply but your solution gives me the max asgnhrs for each and every employee. I need only the employee with the max hours for each worktype.
Beer is proof that God loves man, and wants him to be happy. - Benjamin Franklin
John J. Henn
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