Oracle FAQ | Your Portal to the Oracle Knowledge Grid |
![]() |
![]() |
Home -> Community -> Mailing Lists -> Oracle-L -> Re:interesting floating point problem with oracle
Just tried that against three of my DB's, every time it came back with 1.
____________________Reply Separator____________________ Author: "Adams; Matthew (GEA; 088130)" <MATT.ADAMS_at_APPL.GE.COM> Date: 9/25/2001 7:35 AM
ran across something interesting on metalink.
from
Doc ID: Note:1012478.7
Problem Description
Doing floating point arithmetic involving multiplication and division causes unpredictable results. For example, if you issue the following select statement from a SQL*Plus session, the result would be "~" which is incorrect.
select 62.323/62.323 from dual;
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2654.19">
<TITLE>interesting floating point problem with oracle</TITLE>
</HEAD>
<BODY>
<P><FONT SIZE=2>ran across something interesting on metalink.</FONT>
</P>
<BR>
<P><FONT SIZE=2>from</FONT>
<BR><FONT SIZE=2>Doc ID: Note:1012478.7 </FONT>
</P>
<BR>
<P><FONT SIZE=2>Problem Description</FONT>
<BR><FONT SIZE=2>===================</FONT>
</P>
<P><FONT SIZE=2>Doing floating point arithmetic involving multiplication and
division</FONT>
<BR><FONT SIZE=2>causes unpredictable results. For example, if you issue
the following</FONT>
<BR><FONT SIZE=2>select statement from a SQL*Plus session, the result would be
"~" which</FONT>
<BR><FONT SIZE=2>is incorrect.</FONT>
</P>
<P><FONT SIZE=2>select 62.323/62.323 from dual;</FONT>
</P>
<P><FONT SIZE=2>----</FONT>
<BR><FONT SIZE=2>Matt Adams - GE Appliances - matt.adams_at_appl.ge.com</FONT>
<BR><FONT SIZE=2>"Doing linear scans over an associative array is
like</FONT><BR><FONT SIZE=2> - Larry Wall (creator of Perl) </FONT>
<BR><FONT SIZE=2>trying to club someone to death with a loaded Uzi."</FONT>
</BODY>
</HTML>
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: dgoulet_at_vicr.com Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Tue Sep 25 2001 - 12:08:14 CDT
![]() |
![]() |