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VIEWS are my concern
Message
De
01/02/1999 14:52:58
 
 
À
01/02/1999 14:43:09
Noman Aftab
Embry-Riddle Aeronautical University
Daytona Beach, Floride, États-Unis
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
00182652
Message ID:
00182671
Vues:
8
>This might sound a bit stupid to u but could you please tell me how parameterized views will solve this problem and why do we use them? I have never used them before and will appreciate your time and response.
>Thanks.

The idea of p-view is that it retrieves limited number of records (usually all childs pertained to particular parent), i.e. SQL-string looks like: SELECT ... From ChildTable Where Childtable.Parentid=?nParentid. So, when record pointer moves within parent record, it's enough to reset the parameter: nParentid=Parenttable.Id and issue =Requery("MyPview") to get new set of records. It's pretty common way and used widely (IMHO, it's unnecessary to use for read-only recordsets like list or combo rowsource).
Edward Pikman
Independent Consultant
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