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What's BCD?

Hi.

I'm getting this error message....

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Debugger Exception Notification
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Project earestore.exe raised exception class EBcdOverflowException with message 'BCD overflow'. Process stopped. Use Step or Run to continue.
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OK   Help  
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Does this make any sense to anyone?

John.
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Jaymol
Asked:
Jaymol
1 Solution
 
kretzschmarCommented:
bcd is a specific numeric format,
if u use the bde there is a setting
for handling/interpreting bcd-fields
called enable bcd

the default setting is false

maybe this setting causes the problem
(if u use the bde)

meikl ;-)
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scrapdogCommented:
Binary Coded Decimal, which means that there are 10 possible values per nybble (rather than 16).  Therefore, one byte would represent a number from 0-99 rather than 0-255.

BCD is usually used in accounting applications, where computing in base 10 is typically easier than computing in base 16.

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intheCommented:
hi,
maybe you are using the d6 math unit?
do you know where in the code it happpens?
if not madshis madexception will (9/10 times) tell you the line number so you can see where the problem may be.

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JaymolAuthor Commented:
The problem occurs when executing a stored procedure, but as you can see it's not a DB exception that I get, but a Delphi exception.

I'm using a TSQLConnection and TSQLStoredProc component to achieve this.

Any ideas?

Can I just turn this off somehow?

John.
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JaymolAuthor Commented:
Oh yeah, I'm not using a BDE alias, but an ODBC DSN.

John.
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JaymolAuthor Commented:
Thanks guys.
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KaritzCommented:
Was faced with a similar problem with delphi 6. Interestingly when I do not use the maths unit it works fine...when I use it I get the error....

I just concluded it might be a bug......
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JaymolAuthor Commented:
I've come across a few bugs in Delphi, over the years, and Borland have always suggested I pay them to look into it, with the view of refunding me afterwards if it is their problem.

Hmmmm.....not really a difficult choice, especially at their rates!  I've found EE to be better than Borland's support.  Hell - the internet's better than Borland's support!

SQL queries have always been a problem and I've only recently found a way to work that I'm happy with - using access databases and ADO connections (using the Delphi ADO components).  I find it probably the most stable (other than Oracle or SQL Server) and it's also very SQL friendy, if you've got up to date JetSQL.

John.
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