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Full-Text Manipulation in Databases
Abstract
The textual data format is one of the most important data types in database management. Databases support a wide range of special textual types that can be used to store string data. In the case of textual data, information retrieval mostly concerns the selection and the ranking of documents. In the traditional database management systems (DBMS), text manipulation is related to the usual string manipulation facilities, i.e. the exact matching of substrings. The main disadvantages of the traditional string-level operations are the high cost as they work without task-oriented index structures and the restrictionto the syntax level.
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