Search for the Blind : A schema independent query method using concept hierarchy and keywords
✍ Scribed by Dong-Ha Lee; Su-Woong Kim; Gabrielle Methou; Jeon-Young Lee
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 265 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0360-8352
No coin nor oath required. For personal study only.
✦ Synopsis
Some database schema is very complex and it changes more frequently than the past. On the other hands, in such application database as scientific database and decision-support database, the importance of ad-hoc queries is expected to increase. Therefore the ability of a system to support ad-hoc queries without knowing the database schema information is needed. In this paper, we will describe a method to create candidate structured queries with concept hierarchy using user-input keywords. We will create structured queries in the following step; first, we extract the schema items related to keywords, and second, we compose possible paths between schema items, thus formulate candidate SQL queries.