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The max value of a given group
Message
 
À
17/03/2004 11:57:54
Cetin Basoz
Engineerica Inc.
Izmir, Turquie
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00887108
Message ID:
00887454
Vues:
10
Thanks Cetin!

>>Hi all, I have a table with the following fields: Family, name, age and level. In this table a family can have several members and I need a SQL statement that gets me the older member of each family order by level. For example:
>>
>>
>>Family  Name      Age    Level
>>--------------------------------
>>01      xxxxxxxx   15      1
>>01      xxxxxxxx   13      1
>>01      xxxxxxxx   17      2
>>02      xxxxxxxx   12      1
>>02      xxxxxxxx   15      1
>>02      xxxxxxxx   13      1
>>03      xxxxxxxx   13      1
>>03      xxxxxxxx   18      2
>>03      xxxxxxxx   12      1
>>
>>
>>
>>The result should be:
>>
>>
>>Family  Name      Age    Level
>>--------------------------------
>>01      xxxxxxxx   15      1
>>02      xxxxxxxx   15      1
>>03      xxxxxxxx   13      1
>>01      xxxxxxxx   17      2
>>03      xxxxxxxx   18      2
>>
>>
>>
>>Any help is greatly appreciated!
>>
>>Enmanuel
>
>
>select * from myTable A ;
> where Age = ;
> (select max(age) from myTable B ;
>     where a.Family = b.Family and a.Level = b.Level) ;
>     order by Level,Family
>
Cetin
I'm a mixture of Albert Einstein and Arnold Schwarzenegger. The only trouble is that I got Einstein's body and Schwarzenegger's brain
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