Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
Simulating a pre-VFP 8.0 Group By in SQL
Message
 
 
To
14/09/2010 21:25:09
General information
Forum:
Microsoft SQL Server
Category:
SQL syntax
Miscellaneous
Thread ID:
01481198
Message ID:
01481240
Views:
56
>>Given this data:
>>ITEM DESCRIPT STYLE
>>aaa Item aaa 1
>>bbb Item bbb 1
>>ccc Item ccc 2
>>ddd Item ddd 3
>>eee Item eee 2
>>
>>A pre-VFP 8.0 SQL statement such as:
>>SELECT itemno, descript, styleid, count(item) AS count
>> GROUP BY styleid ;
>> ORDER BY styleid ;
>> INTO CURSOR xxx
>>
>> You get the following result:
>>ITEM DESCRIPT STYLE COUNT
>>bbb Item bbb 1 2
>>eee Item eee 2 2
>>ddd Item ddd 3 1
>>
>>But this won't work in MS SQL Server. It generates an error "Invalid Group By -- all select fields must be used in an aggregate function."
>>
>>So if I wantto simulate the result of the above VFP SQL statement in MS SQL Server, how do I do that? What combination of SQL Statements or computed columns or whatever do I need??
>>
>>Joel
>
>In an aggregate function any column not part of the calculation or part of the group by is garbage data. If there is a 1-1-1 relationship between the itemno - descript - style column use them all as the group by statement. If a style has more than one item, the item column is meaningless as it could be the item in any one of the rows.
>
>VFP's sloppy implementation of group by just lets people do things they shouldn't do <g>

Used to. At least they finally fixed it.
Previous
Reply
Map
View

Click here to load this message in the networking platform