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How to get rank value without rank field
Message
 
 
À
15/07/2011 19:02:55
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows 7
Network:
Windows 2003 Server
Database:
MySQL
Divers
Thread ID:
01518322
Message ID:
01518324
Vues:
52
>Hi Experts,
>
>Is it possible to obtain one's ranking without the need to maintain a rank field?
>
>For example, if we have a Grades table:
>
>Student GenAve
>Marc 98%
>Steve 89%
>Jeff 90%
>Adrian 92%
>Dennis 80%
>
>I would then like to do a:
>
>
>SELECT Student, GenAve, SomeRankFunction() as Rank FROM Grades ORDER BY Rank
>
>
>I guess the above should be MySQL syntax since my backend is MySQL.
>
>Thanks
>Dennis

Google by 'MySQL ROW_NUMBER()'

I found this http://forums.mysql.com/read.php?97,162926,163937#msg-163937, may be it's not easy in MySQL.
If it's not broken, fix it until it is.


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