Hi,
I found nothing,
here is code, time is average of several attempts (with tracing off), sql.log included,
database Oracle 11g,

private pnID
pnid=346119

SqlDisconnect(0)
lcD="{Oracle in OraClient11g_home1}"
lnH=SqlStringConnect("Driver="+lcD+";UID="+lcUser+";PWD="+lcPass+";Dbq="+lcServer+";")
ss=seconds()
SqlExec(lnH,"select * from uVuz where uVlakID=346119")
?seconds()-ss
*0.010 sec, 28 records

SqlDisconnect(0)
lnH=SqlStringConnect("Driver="+lcD+";UID="+lcUser+";PWD="+lcPass+";Dbq="+lcServer+";")
ss=seconds()
SqlExec(lnH,"select * from uVuz where uVlakID=?pnid")
?seconds()-ss
*0.744 sec

SqlDisconnect(0)
lcD="{Microsoft ODBC for Oracle}"
lnH=SqlStringConnect("Driver="+lcD+";UID="+lcUser+";PWD="+lcPass+";Server="+lcServer+";")
ss=seconds()
SqlExec(lnH,"select * from uVuz where uVlakID=346119")
?seconds()-ss
*0.014 sec

SqlDisconnect(0)
lnH=SqlStringConnect("Driver="+lcD+";UID="+lcUser+";PWD="+lcPass+";Server="+lcServer+";")
ss=seconds()
SqlExec(lnH,"select * from uVuz where uVlakID=?pnID")
?seconds()-ss
*0.014 sec