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Relational database management system (RDBMS) as the major data model in database industry
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Driving force: information management, retrieval and processing
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Database server: store, manipulate and manage data in a reliable and powerful information system
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Main RDBMS components
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a search engine: the database management system
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SQL: the query language
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embedded SQL interfaces: interfaces to extend the SQL non-procedure programming in high-level programming languages
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database tools: various (GUI) application interfaces to the DBMS
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client-server as the major communication model
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customized proprietary network protocols built on TCP/IP as the major transport protocol
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focus on file management and I/O processing for a powerful text-based searching and data manipulation system
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