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Raima Databases

Posted on 2004-04-07
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Last Modified: 2011-09-20
Hi all,

I need to know how types like date, integers, floats and doubles are internaly kept in the Raima Data Manager Version 3.30

I am mainly interested in the floating point types float and double (or any other Raima types of this kind).

maybe someone can point me out to some documentation.

Many thanks,
Mafalda.
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Question by:Mafalda
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6 Comments
 
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Expert Comment

by:Arthur_Wood
ID: 10780450
why should you care how the data is stored internally.  That level of detail is generally irrelevant to the user application.

you can check out

http://www.raima.com/database_technology/rdm_server_spec.php3

AW
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Author Comment

by:Mafalda
ID: 10781803
Well, I have a Raima database file without a data dictionary file and I need to extract the data.
I can see and extract small integers (like 0, 1, 2)  and strings but I can't extract the decimal point numbers and larger integer numbers like 1050.
I know several floating point values (like 0.10, 0.12) and their suspected location but there is no way I can get it correctly from the file.
Also, the same number in different records appears to have a different representation . . .
I suspect that the value in the record is a pointer/address of the real location but again there is no clear pattern.
Maybe one of you have the knowledge of how these decimal point numbers (floats, doubles) and integers are kept inside the database ?

All the tools in the market rely on the existance of the .dbd (data dictionary) file.
I tried ITTIA and Birdstep tools but none prevail.
I am forced to write my own connectivity tools.

I have also an erlier version of a database which has a different structure (DAT files no dbd) and I asume that the internal representation of numbers there is the same.

Thanks again,
Mafalda
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LVL 44

Expert Comment

by:Arthur_Wood
ID: 10782398
have you contacted customer support at Birdstep (current parent company of RAIMA)?

Email: support@birdstep.com

 Phone: +1 206 748 5333 or
                   1 877 462 2473
 (08:00am to 04:00pm PST)

perhaps they can help you.

AW
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LVL 6

Author Comment

by:Mafalda
ID: 10787605
Arthur,
Thanks for your help although you didn't tell me anything I didn't know ...

The answer in the case of floats is IEEE-754 Floating-Point

Thanks again your help

Mafalda
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