DOCUMENT:Q176653 22-FEB-2000 [foxpro]
TITLE :FIX: Incorrect Decimal Data Sent to SQL Server with Remote View
PRODUCT :Microsoft FoxPro
PROD/VER:WINDOWS:2.5,3.0,3.0b,5.0,5.0a
OPER/SYS:
KEYWORDS:kbvfp kbvfp600fix kbMDAC250
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The information in this article applies to:
- Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b, 5.0, 5.0a
- Microsoft Data Access Components version 2.5
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SYMPTOMS
========
When you use Remote Views with the SQL Server ODBC Driver (Sqlsrv32.dll version
2.65.0252, 3.50.0303, or 3.50.0311) to send numeric data containing decimal
values to SQL Server tables, incorrect decimal values may be inserted into SQL
Server tables.
RESOLUTION
==========
Use another version of the SQL Server ODBC Driver or use SQL pass-through
functions.
STATUS
======
Microsoft is researching this problem and will post new information here in the
Microsoft Knowledge Base as it becomes available. This has been corrected in
Visual FoxPro 6.0.
MORE INFORMATION
================
When you access SQL Server tables using a remote view, with Sqlsvr32.dll
(versions 2.65.0252, 3.50.0300, 3.50.0303 and 3.50.0311) some decimal values may
be rounded down when the TABLEUPDATE() command is issued. This behavior is not
observed when accessing SQL Server tables using a remote view with other
versions of the SQL Server ODBC driver. This behavior is also not observed when
using the SQL pass-through function SQLEXEC().
The list below indicates the version number of the SQL Server ODBC driver
distributed with each version of Visual FoxPro:
Visual FoxPro for Windows 3.0 2.00.1912
Visual FoxPro for Windows 3.0b 2.50.0126
Visual FoxPro for Windows 5.0a 2.65.0240
Steps to Reproduce Behavior
---------------------------
NOTE: This code uses a data source named PUBS that accesses the pubs database
supplied with Microsoft SQL Server. You must first create this data source and
point it to the pubs database for the code below to work.
Install Sqlsrv32.dll version 2.65.0252 from SQL Server Service Pack 3 or a higher
version number. Run the following code:
SET SAFETY OFF
LOCAL lcconnstring, lcdatafile, lcsysdbofile, lcviewmame, lcsysdbo
LOCAL lncounter, lnhandle, lnchecksource
LOCAL lbsourceexists, lbtableexists, lbconnexists, lbviewexists
lnhandle = SQLCONNECT('PUBS','SA','')
lnchecksource=sqltables(lnhandle,'TABLE','sourcetabs')
SELECT sourcetabs
SCAN
IF UPPER(ALLTRIM(table_name))="DBO.TESTAMOUNT"
lbsourceexists=.T.
EXIT
ENDIF
ENDSCAN
IF !lbsourceexists
tmpcommand="CREATE TABLE dbo.TESTAMOUNT (MYKEY CHAR(10),"
tmpcommand=tmpcommand+" MYAMT NUMERIC(18,4))"
lnreturnresult=sqlexec(lnhandle,tmpcommand)
ENDIF
=sqldisconnect(lnhandle)
SET EXCLUSIVE ON
SET MULTILOCKS ON
lcconnstring = "DSN=PUBS;DATABASE=pubs;UID=sa;PWD="
lcconnname = "SQLTEST"
lcdatafile = "TESTAMOUNT"
lcsysdbofile = "dbo."+lcdatafile
lcviewname = lcdatafile+"VIEW"
lcsysdbo = "dbo."+lcdatafile+"."
lncounter = 0
IF !FILE('SQLTEST.DBC')
CLOSE DATA ALL
CREATE DATABASE sqltest
ELSE
OPEN DATABASE sqltest
ENDIF
lntables=ADBOBJECTS(tablenames,'TABLE')
IF lntables>0
FOR i=1 TO ALEN(tablenames,1)
IF UPPER(tablenames[i])=lcdatafile
lbtableexists=.T.
EXIT
ENDIF
NEXT
ENDIF
IF !lbtableexists
CREATE TABLE testamount ( mykey c(10) , myamt N(18,4) )
ELSE
USE (lcdatafile) EXCL
ZAP
ENDIF
lnconnections=ADBOBJECTS(CONNECTS,'CONNECTION')
IF lnconnections>0
FOR i=1 TO ALEN(CONNECTS,1)
IF UPPER(CONNECTS[i])=lcconnname
lbconnexists=.F.
EXIT
ENDIF
NEXT
ENDIF
IF !lbconnexists
CREATE CONNECTION &lcconnname CONNSTRING (lcconnstring)
* Set connection properties.
DBSETPROP('SQLTEST','Connection','Asynchronous', .F.)
DBSETPROP('SQLTEST','Connection','BatchMode', .T.)
DBSETPROP('SQLTEST','Connection','Comment', '')
DBSETPROP('SQLTEST','Connection','DispLogin', 3)
DBSETPROP('SQLTEST','Connection','ConnectTimeOut', 15)
DBSETPROP('SQLTEST','Connection','DispWarnings', .T.)
DBSETPROP('SQLTEST','Connection','IdleTimeOut', 0)
DBSETPROP('SQLTEST','Connection','QueryTimeOut', 0)
DBSETPROP('SQLTEST','Connection','Transactions', 2)
ENDIF
lnviews=ADBOBJECTS(viewnames,'VIEW')
IF lnviews>0
FOR i=1 TO ALEN(viewnames,1)
IF UPPER(viewnames[i])=UPPER(lcviewname)
lbviewexists=.T.
EXIT
ENDIF
NEXT
ENDIF
IF !lbviewexists
* Create View.
CREATE SQL VIEW &lcviewname REMOTE CONNECT 'SQLTEST' SHARE ;
AS SELECT * ;
FROM &lcsysdbofile &lcdatafile ;
ORDER BY &lcdatafile..mykey
* Set view properties.
DBSETPROP(lcviewname,'View','SendUpdates',.T.)
DBSETPROP(lcviewname,'View','UpdateType',1)
DBSETPROP(lcviewname,'View','WhereType',3)
DBSETPROP(lcviewname,'View','BatchUpdateCount',1)
DBSETPROP(lcviewname,'View','UseMemoSize',255)
DBSETPROP(lcviewname,'View','FetchSize',100)
DBSETPROP(lcviewname,'View','MaxRecords',-1)
DBSETPROP(lcviewname,'View','Tables','dbo.'+lcdatafile)
DBSETPROP(lcviewname,'View','Prepared',.F.)
DBSETPROP(lcviewname,'View','FetchMemo',.F.)
DBSETPROP(lcviewname,'View','CompareMemo',.F.)
DBSETPROP(lcviewname,'View','FetchAsNeeded',.F.)
DBSETPROP(lcviewname,'View','FetchSize',100)
DBSETPROP(lcviewname,'View','Comment',"")
DBSETPROP(lcviewname,'View','ShareConnection',.T.)
* Set Key and Updateable fields.
DBSETPROP(lcviewname+'.mykey','Field','KeyField',.T.)
DBSETPROP(lcviewname+'.mykey','Field','Updatable',.T.)
DBSETPROP(lcviewname+'.mykey','Field','UpdateName',lcsysdbo+'myKEY')
DBSETPROP(lcviewname+'.mykey','Field','DataType',"C(12)")
DBSETPROP(lcviewname+'.myamt','Field','KeyField',.F.)
DBSETPROP(lcviewname+'.myamt','Field','Updatable',.T.)
DBSETPROP(lcviewname+'.myamt','Field','UpdateName',lcsysdbo+'myamt')
DBSETPROP(lcviewname+'.myamt','Field','DataType',"N(15,2)")
* Open view and delete previous test records.
ENDIF
USE (lcviewname) ALIAS (lcviewname) IN 0
SELECT (lcviewname)
DELETE FROM &lcviewname
REQUERY()
* Start buffering and create test records.
IF !USED(lcdatafile)
USE (lcdatafile) IN 0
ENDIF
SELECT (lcdatafile)
IF CURSORGETPROP("Buffering",lcdatafile)<>5
CURSORSETPROP("Buffering",5,lcdatafile)
ENDIF
FOR lncounter = 1 TO 100
m.nnumber = lncounter/100
m.cmykey = PADL(ALLTRIM(STR(lncounter,10,0)),FSIZE("MYKEY") , '0')
INSERT INTO testamount (mykey,myamt ) VALUES (m.cmykey,m.nnumber )
NEXT
TABLEUPDATE(.T.)
* Copy to test records to View and SQL Server.
IF !USED(lcviewname)
USE (lcviewname)
ENDIF
SELECT (lcviewname)
SCATTER MEMVAR MEMO BLANK
SELECT (lcdatafile)
GO TOP
SCAN
SELECT (lcdatafile)
SCATTER MEMVAR MEMO
SELECT (lcviewname)
APPEND BLANK
GATHER MEMVAR MEMO
SELECT (lcdatafile)
ENDSCAN
SELECT (lcviewname)
TABLEUPDATE(.T.)
SELECT (lcdatafile)
GO TOP
SELECT (lcviewname)
REQUERY()
* Show Results in Browse Windows.
DEFINE WINDOW BROWSER FROM 0,0 TO 50,40 IN SCREEN CLOSE ;
FLOAT GROW MINIMIZE ZOOM
SELECT (lcdatafile)
GO TOP
BROWSE WINDOW BROWSER NOWAIT
SELECT (lcviewname)
REQUERY()
GO TOP
MOVE WINDOW BROWSER BY 0,60
BROWSE WINDOW BROWSER NOWAIT
RELEASE WINDOW BROWSER
CURSORSETPROP("Buffering",1,lcdatafile)
Additional query words:
======================================================================
Keywords : kbvfp kbvfp600fix kbMDAC250
Technology : kbVFPsearch kbAudDeveloper kbMDACSearch kbMDAC250 kbVFP300 kbVFP300b kbVFP500 kbVFP500a
Version : WINDOWS:2.5,3.0,3.0b,5.0,5.0a
Issue type : kbbug
Solution Type : kbfix
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