[Koha] why i can't clean it

[hubeimeiyu]

this time i import some marc data into my library ,but i found that it is not the final data i want,so i undo import it and clean it from the koha website,
and i drop the koha database from the mysql databases,
but i could find that the data is still in,i could search it from OPAC part.
but when click it in and the link is broken.
could somebody tell me why?

2010-11-03
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