METHOD FOR COMBINING TABLE DATA

摘要

The present invention provides a structure for table-format data with a small data size whereby a plurality of tables of table-format data can be joined as desired, a method of concatenating table-format data, and a method for displaying concatenated table-format data. In this method, each table of table-format data is constructed in a manner such that each table is divided into one or more information blocks consisting of: a value list in which the field values are stored in the order of a field value number corresponding to the field value belonging to a specified field, and a pointer array in which pointer values for pointing to said field value numbers are stored in a unique record order. The concatenation of a plurality of tables of table-format data is performed by finding equivalent fields among a plurality of tables of table-format data, identifying the information blocks for said equivalent fields, and, in each of said plurality of tables of table-format data, comparing the value lists contained in said identified information blocks, and setting both value lists to the same values. At the time of setting said value lists to the same values, pointer values are added to associated pointer arrays in the information block to which that field value is added, and by making the value lists contained in the information blocks for specific fields in said plurality of tables of table-format data equivalent, concatenating the table-format data.