?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=The+Usefulness+of+Multilevel+Hash+Tables+with+Multiple+Hash+Functions+in+Large+Databases+&rft.creator=Akinwale%2C+A.+T.&rft.creator=Ibharalu%2C+F.+T.&rft.subject=Language&rft.description=In+this+work%2C+attempt+is+made+to+select+three+good+hash+functions+which+uniformly+distribute+hash+values+that+permute+their+internal+states+and+allow+the+input+bits+to+generate+different+output+bits.+These+functions+are+used+in+different+levels+of+hash+tables+that+are+coded+in+Java+Programming+Language+and+a+quite+number+of+data+records+serve+as+primary+data+for+testing+the+performances.+The+result+shows+that+the+two-level+hash+tables+with+three+different+hash+functions+give+a+superior+performance+over+one-level+hash+table+with+two+hash+functions+or+zero-level+hash+table+with+one+function+in+term+of+reducing+the+conflict+keys+and+quick+look-up+for+a+particular+element.+The+result+assists+to+reduce+the+complexity+of+join+operation+in+query+language+from+O(n2)+to+O(1)+by+placing+larger+query+result%2C+if+any%2C+in+multilevel+hash+tables+with+multiple+hash+functions+and+generate+shorter+query+result.+&rft.date=2009-05&rft.type=Journal+(Paginated)&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F6536%2F1%2F7-1-01-Akinwale.pdf&rft.identifier=++Akinwale%2C+A.+T.+and+Ibharalu%2C+F.+T.++(2009)+The+Usefulness+of+Multilevel+Hash+Tables+with+Multiple+Hash+Functions+in+Large+Databases.++%5BJournal+(Paginated)%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F6536%2F