Problems with float
Interesting issue... I am extracting a price from an XML feed for insertion into our local data. The price is returned as a simple float value which I can output to screen just fine. Unfortunately when I insert the info into the database it gets a little messed up. Here are 5 inserted values from a small test run... 19.988 15.99 9.9902 14.99 39.992 As you can see, 2 of them inserted fine but 3 of them got inserted with a 0.002 margin of error. Does anyone know why this is happening? FYI: This is going into MSSQL but I get the same problems with MySQL so I don't think it is a DB issue. -- Jay -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.10.9/417 - Release Date: 11/08/2006 ~| Introducing the Fusion Authority Quarterly Update. 80 pages of hard-hitting, up-to-date ColdFusion information by your peers, delivered to your door four times a year. http://www.fusionauthority.com/quarterly Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:249705 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: Problems with float
On Monday 14 August 2006 12:00, James Smith wrote: The price is returned as a simple float value which I can output to screen just fine. Unfortunately when I insert the info into the database it gets a little messed up. Are you performing any arithmetic on this value ? -- Tom Chiverton This email is sent for and on behalf of Halliwells LLP. Halliwells LLP is a limited liability partnership registered in England and Wales under registered number OC307980 whose registered office address is at St James's Court Brown Street Manchester M2 2JF. A list of members is available for inspection at the registered office. Any reference to a partner in relation to Halliwells LLP means a member of Halliwells LLP. Regulated by the Law Society. CONFIDENTIALITY This email is intended only for the use of the addressee named above and may be confidential or legally privileged. If you are not the addressee you must not read it and must not use any information contained in nor copy it nor inform any person other than Halliwells LLP or the addressee of its existence or contents. If you have received this email in error please delete it and notify Halliwells LLP IT Department on 0870 365 8008. For more information about Halliwells LLP visit www.halliwells.com. ~| Introducing the Fusion Authority Quarterly Update. 80 pages of hard-hitting, up-to-date ColdFusion information by your peers, delivered to your door four times a year. http://www.fusionauthority.com/quarterly Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:249706 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: Problems with float
I have had problems with floats before, where the calculations were incorrect. Wrapping everything with val(number) or evaluate(number) sorted it all out for me. It was all with calculations that the problems were caused though, returning incorrect numbers. cheers Martin Interesting issue... I am extracting a price from an XML feed for insertion into our local data. The price is returned as a simple float value which I can output to screen just fine. Unfortunately when I insert the info into the database it gets a little messed up. Here are 5 inserted values from a small test run... 19.988 15.99 9.9902 14.99 39.992 As you can see, 2 of them inserted fine but 3 of them got inserted with a 0.002 margin of error. Does anyone know why this is happening? FYI: This is going into MSSQL but I get the same problems with MySQL so I don't think it is a DB issue. -- Jay -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.10.9/417 - Release Date: 11/08/2006 ~| Introducing the Fusion Authority Quarterly Update. 80 pages of hard-hitting, up-to-date ColdFusion information by your peers, delivered to your door four times a year. http://www.fusionauthority.com/quarterly Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:249708 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
RE: Problems with float
No calculations are being done, I am simply grabing the value from an XML feed and then doing an SQL insert into the DB. -- Jay -Original Message- From: Martin Thorpe [mailto:[EMAIL PROTECTED] Sent: 14 August 2006 12:45 To: CF-Talk Subject: Re: Problems with float I have had problems with floats before, where the calculations were incorrect. Wrapping everything with val(number) or evaluate(number) sorted it all out for me. It was all with calculations that the problems were caused though, returning incorrect numbers. cheers Martin Interesting issue... I am extracting a price from an XML feed for insertion into our local data. The price is returned as a simple float value which I can output to screen just fine. Unfortunately when I insert the info into the database it gets a little messed up. Here are 5 inserted values from a small test run... 19.988 15.99 9.9902 14.99 39.992 As you can see, 2 of them inserted fine but 3 of them got inserted with a 0.002 margin of error. Does anyone know why this is happening? FYI: This is going into MSSQL but I get the same problems with MySQL so I don't think it is a DB issue. -- Jay -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.10.9/417 - Release Date: 11/08/2006 ~| Introducing the Fusion Authority Quarterly Update. 80 pages of hard-hitting, up-to-date ColdFusion information by your peers, delivered to your door four times a year. http://www.fusionauthority.com/quarterly Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:249710 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
RE: Problems with float
Are you storing the data in a float field in the db? Floats are inherently inaccurate. You should probably use the decimal(x,y) data type (if you're using SQL server). Leon -Original Message- From: James Smith [mailto:[EMAIL PROTECTED] Sent: Monday, August 14, 2006 7:11 AM To: CF-Talk Subject: RE: Problems with float No calculations are being done, I am simply grabing the value from an XML feed and then doing an SQL insert into the DB. -- Jay -Original Message- From: Martin Thorpe [mailto:[EMAIL PROTECTED] Sent: 14 August 2006 12:45 To: CF-Talk Subject: Re: Problems with float I have had problems with floats before, where the calculations were incorrect. Wrapping everything with val(number) or evaluate(number) sorted it all out for me. It was all with calculations that the problems were caused though, returning incorrect numbers. cheers Martin Interesting issue... I am extracting a price from an XML feed for insertion into our local data. The price is returned as a simple float value which I can output to screen just fine. Unfortunately when I insert the info into the database it gets a little messed up. Here are 5 inserted values from a small test run... 19.988 15.99 9.9902 14.99 39.992 As you can see, 2 of them inserted fine but 3 of them got inserted with a 0.002 margin of error. Does anyone know why this is happening? FYI: This is going into MSSQL but I get the same problems with MySQL so I don't think it is a DB issue. -- Jay -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.405 / Virus Database: 268.10.9/417 - Release Date: 11/08/2006 ~| Introducing the Fusion Authority Quarterly Update. 80 pages of hard-hitting, up-to-date ColdFusion information by your peers, delivered to your door four times a year. http://www.fusionauthority.com/quarterly Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:249713 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
