The Use of SQL and Second Generation Database Management Systems for Data Processing and Information Retrieval in Libraries

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Библиографические подробности
Опубликовано в::	Information Technology and Libraries vol. 8, no. 4 (Dec 1989), p. 400-407
Главный автор:	Leigh, William
Другие авторы:	Paz, Noemi
Опубликовано:	American Library Association
Предметы:	American National Standards Institute Standards Libraries Information retrieval Implementations Data processing Data base management systems Computer languages Applications Computer programming & languages Computation Databases Computer architecture Language use Codification Personal computers Computer simulation Query languages Standardization On-line systems Searching Local area networks Catalogs Mainframes Language Structured Query Language-SQL Data mining Management Subsets National standards Computers Second generation Prices Retrieval Management Systems Online Catalogs Computer Networks Database Management Systems Client Server Architecture
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Описание
Краткий обзор:	Structured Query Language (SQL) is a database querying language that was codified as a standard by the American National Standards Institute. SQL is based on the relational modeling of data and is a language for retrieving subsets of the database according to search criteria. SQL is awkward as a direct interface for patron catalog searching. Free text and partial string search are possible with SQL, and this capability can accomplish keyword searching, although not without drawbacks. There are new SQL-interfacing products and techniques that can solve the problem of lack of direct SQL applicability to patron-user computing. A 2nd generation of database management systems has been spurred by SQL standardization. The orientation of these new systems is to distribute application on local area networks. Mainframe computer performance is made available at personal computer prices by this client-server architecture. This development has many implications for library computing.
ISSN:	0730-9295 0022-2240
Источник:	ABI/INFORM Global