DATA BASE MANAGE SYS
DATA BASE MANAGE SYS COP 5725
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Hans Farrell PhD
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This 3 page Class Notes was uploaded by Hans Farrell PhD on Friday September 18, 2015. The Class Notes belongs to COP 5725 at University of Florida taught by Markus Schneider in Fall. Since its upload, it has received 9 views. For similar materials see /class/206689/cop-5725-university-of-florida in Computer Programming at University of Florida.
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Date Created: 09/18/15
DDDDDD What you should have learned after this lecture what the requirements of database systems are some fundamental database terms which kind of data models and database languages exist the main concepts of the socalled threelevel model what data independence means and why it is important understand roughly the software architecture of a database management system 12 Requirements and Advantages of Database Systems Data independence El independence of application programs from the details of data representation and data storage abstract view on data Efficient data access El multitude of sophisticated techniques for the efficient storage of and efficient access to persistent data El application of index structures Common data basis El common data basis for all current and future application programs Concurrent data access El simultaneous access to the same data by different users El each user gets the impression of exclusively accessing data El concept of transaction for the synchronisation of concurrent data accesses