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SQL columns
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21/10/1997 17:05:21
 
 
À
21/10/1997 16:59:53
Ian Johnston
Computer Software Solutions
Woodland, Californie, États-Unis
Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Titre:
Divers
Thread ID:
00055848
Message ID:
00055868
Vues:
37
>>>>>>>>>I am trying to build a view that totals an amount filed, I wish to have one column total be a YTD total and another column for just a particular day. I have tried using a join but that gives two rows for the result, I need one row with both totals.
>>>>>>>>>
>>>>>>>>>TIA
>>>>>>>>>
>>>>>>>>>Ian
>>>>>>>>Make that a union not a join
>>>>>>>
>>>>>>>Union gives you new row(s). Do you really want to have columns? Could you post a sample of wishful query results.
>>>>>>
>>>>>>The view is to show the amount of a commodity delivered to a warehouse both YTD and today
>>>>>>
>>>>>>Commodity YTD delivered Today delivered
>>>>>>Wheat 99999 11111
>>>>>>
>>>>>>Ian
>>>>
>>>>Firstly, excuse me for empty reply. Secondly, what do you have in base table? Do you have multiple commodities? It seems to me that cross-tab query will be part of solution.
>>>
>>>Yes there are multiple commoddities. What I think I am wondering is, is it possible to perform the query as follows:
>>>
>>>sum(amount) for dtdate < date() in one column and sum(amount) for dtdate = date() in a separate column.
>>
>>Don't rush, please! If you have multiple commodities then, I assume, you want to get many records (one for each commodity) in resulting cursor. Is this right?
>
>Sorry about that!
>
>Yes there are muliple commodities. Yes I do want one for each commodity

Ok. I am leaving now, so I will give you some ideas how to fulfil your task:
1. Normalize your data around YTD, i.e. Select-SQL with adding one new field 'ytd' equal "a" if table.datefield>date() and "b" if table.fielddate<=date().
2. Group this cursor by two fields (commodity_name+ytd) to get SUM(amount).
3. Run cross-tab query now, using commodity_name as rowfield and ytd as columnfield.
I hope someone else will help you, while you are moving here.
Edward Pikman
Independent Consultant
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