Data A collection of facts from which conclusions may be drawn; In computer science, data is any information in a form suitable for use with a computer. Database A database…
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PowerPoint Presentation Relational structure We can express the structure of a relation by a Tuple, a shorthand notation The name of the relation is followed (in parentheses)…
Slide 1 B.L. “Tink” Tysor Bayard Lee Tysor, Inc. www.BLTysor.com [email protected] 401-965-2688 1 Utilizing Views, RI and Other Stuff for Performance New England DB2 User…
Chapter No 3 Relational Model 3.1 Codd’s rules A relational DBMS must use its relational facilities exclusively to manage and interact with the database. The ’12’ E.F…