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Database is perceived as a set of tables; Query results are also tables. Main advantages: Simple; With solid math base. Relational model: Database structure ...
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SQL(Structured Query Language) is the standard for relational databases. Many different database vendors support SQL: Oracle, Sybase, IBM DB2, MS SQL Server, MS ...
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Database – collection of persistent data; Database Management System (DBMS) – software system that supports creation, population, and querying of a database.