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Help! My CA's and SPT ignore the FetchSize Property
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To
24/03/2004 09:09:06
General information
Forum:
Visual FoxPro
Category:
Other
Miscellaneous
Thread ID:
00889217
Message ID:
00889358
Views:
32
In the VCX, is the FetchSize property of the CA Base Class set to -1? Also make sure this is set at -1 in the CA objects in the DE of your form. Just a guess, but check to see what SQLGETPROP(0, 'Asynchronous') returns. If it returns .T., use SQLSETPROP(0, 'Asynchronous', .F.) before you open any connection. Also, the BatchMode property should be .T. [use SQLGETPROP/SETPROP to determine/set this]. By using ZERO for the connection handle parameter, these properties and any others you may need will then be the 'default" whenever you open a new connection.

I will also look at making the Builder UI into an SCX/SCT instead [or in addition to] of PRG based.

>Hi Mark
>
>I have a huge problem. The CA property "FetchSize" with a default of 100 exists in the CA. I have tried setting this as in the Help file to -1 but it has NO effect on the fetch speed. The data still comes down in lots of 100.
>
>I have tested this on a local SQL table with > 50 000 records. My select will bring down about 2800 records for a report.
>
>When I run this cursor from a test form, I can see in the status bar rge number of records incrementing in 100 lots whatever I change the FetchSize to. This also happens with SPT.
>
>My code for the spt is similar to that in the CA:
>oConn=sqlstringconnect([Driver={Sql Server};Server=localhost;Database=zest;Int Security;])
>
>csql= "select * from client where LEFT(clientno,3) = 'QJI'"
>?SQLEXEC(oconn,csql,"myc")
>
>returns the cursor but in lots of 100.
>
>I tried issueing:
>
>CURSORSETPROP("FetchSize" ,-1)
>and
>CURSORSETPROP("FetchSize" ,3000)
>
>and even
>CURSORSETPROP("FetchSize" ,-1,0)
>
>but I still get the data down in lots of 100. I have even SET RESOURCE OFF, changed the Options/RemoteData to select ALL and even tried Syncronous/asyncronous mode with the same result.
>
>I have tried this code on my work as well as home computer with the same result, both using XP and VFP8SP1.
>
>My SQLODBC driver is v2000.85.1022.00 dated 20/02/2003
>
>I am literally pulling my hair out in frustration as I cannot for the life of me find a way of getting the data down in one lot :(
>
>Even the MS Sample form in samples/solution/toledo/casample.scx displays the same behaviour.
>
>Please help as I am in the middle of a VFP>SQL2000 conversion and have based my dataaccess on CA's and SPT, both of which refuse to heed the FetchSize Property.
>
>Also I have found a way to get the CA's to work with transactions by setting the = SQLSETPROP(gnHandle, 'Transactions', 2), doing all my updates, doing a SQLCOMMIT or SQLROLLBACK (if failed) and finally
>= SQLSETPROP(gnHandle, 'Transactions', 1). I have tested this and it works.
>(this was a query I had addressed to you)
>
>Any help with my problem would be much appreciated.
>
>TIA
>
>Bernard
>
>ps. Glad I could be of help with the CABuilder and views.
>pps. Is it possible that you have the CA builder as a FORm rather than a prg as I have some ideas and find it difficult to edit objects in a prg.:)
>
>
>
>
>TIA
>
>Bernard
Mark McCasland
Midlothian, TX USA
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