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SQLEXEC and Shared Connection Problems
Message
De
11/11/2004 07:05:15
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 8
OS:
Windows XP SP1
Database:
MS SQL Server
Divers
Thread ID:
00960314
Message ID:
00960341
Vues:
8
>Hi,
>
>I'm having a little difficulty determining the busyness of a shared connection when using a combination of remote views and cursors created via SQLEXEC calls.
>
>The problem seems to be that whenever I check the busyness of the connection using the statement handle returned from the SQLCONNECT command it always returns .F. when it should return .T.
>
>Say we have a connection set up as follows ;
>
>CREATE CONNECTION Connection1 CONNSTRING 'driver=SQL SERVER;server=(local);uid=SA;pwd=SA;database=MyDataBase'
>
>And a remote view set up in the following way ;
>
>CREATE SQL VIEW MyRemoteView REMOTE CONNECTION Connection1 SHARE AS SELECT * FROM SOMEBIGTABLE
>DBSETPROP('MyRemoteView','View','AllowsimultaneousFetch',.T.)
>DBSETPROP('MyRemoteView','View','Fetchasneeded', .F.)
>DBSETPROP('MyRemoteView','View','Fetchsize', 100)
>DBSETPROP('MyRemoteView', 'View', 'ShareConnection', .T.)
>
>IF I run my view and after the first 100 records are returned, then test the busyness of the connection it works fine. ie
>
>USE MyRemoteView
>llBusy = SQLGETPROP(CURSORGETPROP('ConnectHandle'), "ConnectBusy")
>
>The the llBusy variable equates to TRUE.
>
>Now if I attempt to open the above remote view and then create a statement handle via a call to SQLCONNECT the busy status doesn't behave itself... ie
>
>USE MyRemoteView && begin to download the large recordset
>* now get a handle onto the shared connection
>lnhandle=SQLCONNECT('Connection1',.T.)
>* test to see if the shared connection is busy, it should be!
>llBusy = SQLGETPROP(lnhandle,"ConnectBusy")
>
>The llBusy returns FALSE
>
>My understanding is that the statement handle returned from the SQLCONNECT command is using the shared 'Connection1' connection. The SQLCONNECT command should be using a previously shared connection as I've set the second parameter on the SQLCONNECT to true.
>
>Any body got any ideas?
>
>Thanks, Bernard

try:
DBSETPROP('MyRemoteView','View','AllowsimultaneousFetch',.F.)
You have understood what she means this property?
For how much I have understood, he does not work

Fabio
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