Level Extreme platform
Subscription
Corporate profile
Products & Services
Support
Legal
Français
Floating point and remote views
Message
From
21/07/2011 10:44:26
 
 
To
21/07/2011 10:08:18
General information
Forum:
Visual FoxPro
Category:
Coding, syntax & commands
Environment versions
Visual FoxPro:
VFP 9 SP2
OS:
Windows XP SP2
Database:
MS SQL Server
Miscellaneous
Thread ID:
01518756
Message ID:
01518774
Views:
47
>Charles,
>
>Can you cast as B(16) ?

That seems to get the same result as casting as B

VFP help says float is included for compatibility but is functionally equivalent to numeric. I'm wondering if there is a way to convert these things to very large numerics N(32,10) or something.

(addendum - casting as n(32,10) for the view is not an option)

>
>>I am hoping some of the serious math wonks will take pity on an old man who still finds long division challenging.
>>
>>I have SQL database tables that make heavy use of floating point numbers.
>>
>>In my remote view, I am pulling half a dozen of those numbers. The remote view defines them as data type 'B' ( of which I have not previous experience)
>>
>>I need to multiply those number together, then put the result in a field I created as part of the remote view ( casting a 0 as float )
>>
>>But in the watch window these values all show up as N , even though the values can look like 140333030.002033021000
>>And when I multiply them the result looks like a float, But when I try to save the value into a view column, I get a numeric data overflow.
>>
>>Trying to cast the numbers as B just gets them lopped off after about 4 decimals. ( I think this has something to do with 16bit vs 32 bit math, but since my brain runs on an i386sx chip, it is beyond me )
>>
>>I'm sure this problem is nothing new to anyone who has tried it and I found this
>>
>>http://fox.wikis.com/wc.dll?Wiki~VFPFloatingPointDataType
>>
>>on the wiki.
>>
>>But I am trying to wrap my brain around how to employ conversions ( and which of the functions to use ) in pulling, manipulating and hopefully saving the data.
>>
>>Really stuck on this one.
>>
>>TIA


Charles Hankey

Though a good deal is too strange to be believed, nothing is too strange to have happened.
- Thomas Hardy

Half the harm that is done in this world is due to people who want to feel important. They don't mean to do harm-- but the harm does not interest them. Or they do not see it, or they justify it because they are absorbed in the endless struggle to think well of themselves.

-- T. S. Eliot
Democracy is two wolves and a sheep voting on what to have for lunch.
Liberty is a well-armed sheep contesting the vote.
- Ben Franklin

Pardon him, Theodotus. He is a barbarian, and thinks that the customs of his tribe and island are the laws of nature.
Previous
Next
Reply
Map
View

Click here to load this message in the networking platform