[BioSQL-l] null title and CRC

[Hilmar Lapp]

The CRC for references uses the authors, title, and location  
attributes in Bioperl-db, and empty (or null) strings default to the  
string "<undef>".

If title is empty and authors and location do not distinguish two  
references, then why do you want to have two rows for those  
references? Basically, there are identical for all intents and  
purposes, or are they not?

	-hilmar

On Jul 9, 2006, at 11:03 PM, mark.schreiber at novartis.com wrote:

> Hi -
>
> We are having a problem in biojava parsing some genbank records that
> contain references with no title. These cannot have a CRC value  
> which is
> required in BioSQL. If we make the title an empty string then we  
> quickly
> get non-unique CRC numbers.
>
> What does BioPerl do in these cases?
>
> - Mark
>
> Mark Schreiber
> Research Investigator (Bioinformatics)
>
> Novartis Institute for Tropical Diseases (NITD)
> 10 Biopolis Road
> #05-01 Chromos
> Singapore 138670
> www.nitd.novartis.com
>
> phone +65 6722 2973
> fax  +65 6722 2910
>
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>

-- 
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: Hilmar Lapp  -:-  Durham, NC  -:-  hlapp at gmx dot net :
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