Help for delete more RRs

[maurywind at interfree.it]

Dear all and happy new year...
.. I should delete about 1000 RRs from same zone. I know 2 methods that are good for to add or delete of less RRs: 1) nsupdate utility 2) restart BIND after make the changes of forward and reverse tables. Do you know or do you can suggest me other (or best) solutions for to make those changes in little time and/or to have never service-impact in  my company ??
Many thanks for your help.

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