Good worst-case algorithms for inserting and deleting records in dense sequential files

  • Authors:
  • Dan E. Willard

  • Affiliations:
  • SUNY Albany and Consultant, Bell Communications Research

  • Venue:
  • SIGMOD '86 Proceedings of the 1986 ACM SIGMOD international conference on Management of data
  • Year:
  • 1986

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Abstract

Consider a file which arranges records in sequential order, and stores them with possible empty spaces in M consecutive pages of memory. We develop an insertion-deletion algorithm which runs in a worst-case time approximately proportional to log2M divided by the page-size when the set of manipulated records has cardinality O(M).