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Chapter 92
Handbook of Research on Innovations in Database Technologies and Applications: Current and Future Trends
Text data without any predefined structure. It contains usually sentences given in some natural language.
Published in Chapter:
Full-Text Manipulation in Databases
László Kovács (University of Miskolc, Hungary) and Domonkos Tikk (Budapest University of Technology and Economics, Hungary)
Copyright: © 2009 |Pages: 8
DOI: 10.4018/978-1-60566-242-8.ch092
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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