MJ Ray schreef op vr 01-08-2014 om 07:45 [+0200]: > I'd suggest that more records in the collection increases the chance > of something strange or undocumented that causes problems in one > record, which is one reason why migration quotes increase with > collection size.
In my experience, it seems to be roughly logarithmic. So, a 1,000 record system will have almost as many oddities as a 10,000 record system which will have almost as many oddities as a 100,000 record system. In no small part this tends to be due to the software handling the larger systems does a better job at data integrity and exporting. I've seen small systems where the XML exporter (which is the only way to get everything out) produces invalid XML, and larger systems where everything is pretty much a normalised database dump, exported with proper escape characters and consistent character sets. The smaller systems are also less good at enforcing data consistency, and I expect that the staff at smaller places tend to be a bit more relaxed about what's going into the system. -- Robin Sheat Catalyst IT Ltd. ✆ +64 4 803 2204 GPG: 5FA7 4B49 1E4D CAA4 4C38 8505 77F5 B724 F871 3BDF _______________________________________________ Koha mailing list http://koha-community.org Koha@lists.katipo.co.nz http://lists.katipo.co.nz/mailman/listinfo/koha