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sql is relationally complete-justify
What are three components of the schema architecture proposed by ANSI/SPARC? The three component schema architecture proposed by ANSI/SPARC is as given below: External sche
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
What are the Overlapping elements Overlapping elements can be found by scanning all the elements in front of deleted element in priority list for the sheet and comparing them
What are attributes? Give examples. An entity is shown by a set of attributes. Attributes are descriptive properties possessed by every member of an entity set. Example: pos
What are the three data anomalies that are similarly to take place as a result of data redundancy? Can data redundancy be completely eliminated in database approach? Why or why n
What is self-transition? If there is a transition which goes back to same state, it is known as "self- transition." With a trigger action exit action would be executed f
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
Write short notes on relational model The relational model uses a collection of tables to show both data and the relationships between those data. The relational mo
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