Plateforme Level Extreme
Abonnement
Profil corporatif
Produits & Services
Support
Légal
English
Creating a new order on two PCs
Message
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
01638327
Message ID:
01638340
Vues:
57
>>>Hi,
>>>
>>>I have a situation where one customer is experiencing the following: two users (on different PCs) create a new order and if they do it pretty much at the same time, the second one overwrites the first. The DB is SQL Server. The method of updating the DB is CursorAdapter.
>>>
>>>Here is the segment of the code dealing with creating new order:
>>>
>>>
>>>INSERT INTO V_ORDERS ( STATUS, DATE_OPEN,  OPEN_TIME, USER_NAME, USER_ID, INSP_PASS, SITE_NO ) VALUES ;
>>>				('O', DATE(), time(), oPassword.UserName(), oPassword.User_Password_Id(), NULL, this.site_no )
>>>
>>>	IF !TABLEUPDATE(0,.T., "V_ORDERS" )
>>>		AERROR(aErrorInfo)
>>>		this.error_message_text = aErrorInfo[1,2]
>>>		this.error_number = aErrorInfo[1,1]
>>>		this.error_message_title = "Failed TABLEUPDATE() of V_ORDERS"	
>>>		RETURN .F.
>>>	ENDIF
>>>
>>>
>>>The error (which is logged) does not seem to fire. But is it possible that the TABLEUPDATE() takes "time" (a second or two or more) to actually update the SQL Server. And therefore, the second user's TABLEUPDATE() overwrites the first one? If this is the case, how do I "force" the tableupdate to be faster? Or any other suggestions to deal with this situation?
>>>
>>
>>Is there an Insert trigger on the SQL Server table? If so, what does it do?
>>
>>Tamar
>
>No, there is no insert trigger on this table. Why would it be necessary?

Where do you have the logging of the error? Are you sure it's logged? Can you try simulating the situation locally if, say, you have 2 computers with that application and ask your wife or daughters to press Save by your command?
If it's not broken, fix it until it is.


My Blog
Précédent
Suivant
Répondre
Fil
Voir

Click here to load this message in the networking platform