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What is a Built-in
A notation of identity is built-into the data model or programming language and no user-supplied identifier is needed. This form of identity is used in object oriented systems.
example of bank
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
explain multi key file organisation
Domain Constraint It shows that each attribute in a relation has to contain an atomic value only from the corresponding domains. The data types associated with commercial RDBMS
Define average seek time. The average seek time is the average of the seek times, calculated over a sequence of random requests.
Consider the following relations: BRANCH( bno, street, area, city, pcode, Tel_no, Fax_no) STAFF( Sno, Fname, Lname, address, position , salary, bno) Express the subsequent qu
East Coast Aquarium Relational Database
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
What is a primary index? A primary index is an index whose search key also explains the sequential order of the file.
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
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