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编译dBASE索引文件结构
引用本文:宋林松. 编译dBASE索引文件结构[J]. 苏州大学学报(医学版), 1991, 7(4): 398-406
作者姓名:宋林松
作者单位:苏州丝绸工学院管理工程系 215005
摘    要:

关 键 词:编译dBASE 索引文件结构 数据库

THE STRUCTURE OF INDEX FILE OF COMPILE dBASE
Soon Lingsong. THE STRUCTURE OF INDEX FILE OF COMPILE dBASE[J]. Journal of Suzhou University(Natural Science), 1991, 7(4): 398-406
Authors:Soon Lingsong
Affiliation:Suzhou Institute of Silt Textile Technology
Abstract:The structure of index file of compile dBASE (CLIPPER) has been researched in this paper. The index file is divided into blocks, a block has 1024 bytes. Excepting initil block, these blocks constitute index tree as nodes. The growing regulation of index tree is pointed. It has been expressed that formulae and arithmetic method determine all structure parameters for a kind of index tree. And the structure of general situation is cleared. Finally the search process and influnce of add, update or delete on index tree are discussed.
Keywords:Structure of index file  compile dBASE (CLIPPER)  database
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