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Begin..End Transaction in RVs
Message
 
 
À
11/03/2002 04:28:18
Czarina Joyce Villanueva
Innovision Systems International
Manila, Philippines
Information générale
Forum:
Visual FoxPro
Catégorie:
Client/serveur
Divers
Thread ID:
00630837
Message ID:
00630845
Vues:
18
Hi!

What is a buffering for views: row or table (3-d or 5-th)? If row, then data might be already updated automatically because record moving.

Rollback does not revert all data, RollBack leaves data in views as they where before all tableupdates().

Why you use TableRevert() here? This function will revert also user's changes. When user typed a ot of data, reverting when some problem will cause that user will require to type all data again. So changes in the views will be available, and user can correct them and submit data again for saving. Tablerevert is useful revert all user's changes by "Cancel" button or when exiting form without saving.

>Sorry it must be:
>
>Begin Transaction
>lUpdate = TableUpdate(1,.T.,"MyRvAlias1")
>If lUpdate
>   lUpdate = TableUpdate(1,.T.,"MyRvAlias2")
>Endif
>If lUpdate
>   lUpdate = TableUpdate(1,.T.,"MyRvAlias3")
>Endif
>If lUpdate
>   End Transaction
>Else
>   Rollback
>   =TableRevert(.T.,"MyRvAlias1")
>   =TableRevert(.T.,"MyRvAlias2")
>   =TableRevert(.T.,"MyRvAlias3")
>Endif
>
>Problem is if MyRvAlias1 commits successfully but MyRvAlias2 does not, the Rollback does not restore the original values of both tables. Am I missing something?
>
>BTW, my database is still pure VFP, but sooner we will upgrade it to SQLServer 2000 that's why we are using RVs and SPTs.
Vlad Grynchyshyn, Project Manager, MCP
vgryn@yahoo.com
ICQ #10709245
The professional level of programmer could be determined by level of stupidity of his/her bugs

It is not appropriate to say that question is "foolish". There could be only foolish answers. Everybody passed period of time when knows nothing about something.
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