[BioSQL-l] Regarding: Handling of long sequences & organism details in BioSql

[Ritu Ritu]

Hi Group,
 
I am a novice in this area of bioinformatics and am in a process of
comparing few schemas (Chado, BioSql, GUS,DAS).
 
Can anybody comment on handling of long DNA sequences in these schemas?
Which one of these is most efficient in handling elaborate taxonomic
information about an organism ?
 
Are there any documents that I can refer to gain a clear insight into
these above-mentioned schemas? 
 
Due thanks for your time and comments.
 
Regards,
Ritu