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The relational model of data is the most widely used model today. This tutorial will give you enough understanding on the various components of sql along with suitable examples. Relational database design 1 relational database design basic concepts a database is an collection of logically related records a relational database stores its data in 2dimensional tables a table is a twodimensional structure made up of rows tuples, records and columns attributes, fields example. Skills covered in this course business developer web data analysis databases access microsoft office office 365. In simple words data can be facts related to any object in consideration. The main functions of a dbms are to create the database, insert, read, update, and delete database data, maintain data integrity and security and prevent data from being lost by providing back up and recovery capabilities. Database management system notes pdf dbms pdf notes starts with the topics covering data base system applications, data base system vs file system, view of data, etc. The portion of the real world relevant to the database is sometimes referred to as the universe of discourse or as the database miniworld. Database management system tutorial tutorialspoint.
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