| 摘要 |
A method and apparatus for indexing data entry records groups in a plurality of raw data entry records, each data entry records group having at least one of the data entry records with at least one key field containing an item, includes a master list of items in the raw data to be indexed. A data entry records group is read and a tally of a key number representing a total number of the key fields in the data entry records group is generated. In some cases, the key fields are sorted in a predetermined sequence, duplicate key fields are removed and the key number is adjusted for the key fields removed. An index record having a predetermined number of key fields equal to the key number and a first pointer related to instructions for processing any other data entry records group having the same combination of key fields is generated. Each item in the key fields of the data entry records group is mapped to generate a corresponding item indicator in the key fields of the index record. If the index record matches an existing index record, the instructions related to the first pointer are executed. If the index record is new, a second pointer is added related to a location of the data entry records group in the plurality of data entry records.
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