IntroductionToSQL_StructuralBusinessRules

IntroductionToSQL_StructuralBusinessRules - Introduction to...

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Introduction to SQL Structural Business Rules Copyright 2010-2015 Warren Mansur. Permission granted for any use of Boston University.
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Relational Database Introduction Relational Database Introduction In the early 70s E.F. Codd introduced a model he termed the relational model. That model was deemed useful, but the current hardware could not support a database that uses the relational model. Today, however, relational databases are in widespread use. Knowledge of relational databases is generally considered foundational to the myriad of database- centric technologies.
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Introduction to SQL Introduction to SQL The Structured Query Language (SQL) is the de-facto query language for modern relational database management systems (RDBMS). All major, modern RDBMS support SQL. Database developers, administrators, and even software applications access RDBMS through the use of SQL. Familiarity with SQL is essential for working with and understanding modern RDBMS.
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Nature of SQL Nature of SQL SQL is a declarative language, where the developer specifies what he/she wants without specifying the details of how to perform the logic.
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