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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 objec
To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.
Ways for Selecting Data Structure Algorithms operate on data structure. Therefore, selection of the best algorithm means selecting the best data structure from whole bunch. Th
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
explain ER Modeling?
er diagram on cosmetics.
What is Derived and stored Attribute? Derived and Stored Attribute - In a few cases, two or more attribute values are associated, for example, Age and BirthDate attributes of a
Explain Record Based Logical Models? Record-Based logical Models: Also define data at the conceptual and view levels. Unlike object-oriented models, are used to state overall
what are the topics in data management
Distributed Database Management System
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