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Explain the concept of Modeling With Objects
A model is a conceptual representation of a specification, design or system from a particular point of view. A modelling language is a way of expressing different models produces during development process. It is a collection of model elements. It is usually diagrammatic. It has
syntax - the rules that finds which diagrams are legal
semantics - the rules which determine what a legal diagram means.
what are the type of the database
Describe the GRANT function and explain, how it associates to security. What kind of privileges may be granted? How are they revoked? Ans: Since more than one user can aacce
Competition entrants can be either Individuals, or Teams. A Team is usually sponsored by a business, and, in that case, the team members would all wear T-shirts with the sponsoring
Write the C++ program having class name studentinfo, that is used to store the VU student information: This class should store your VUID, campus id, name and father name in the fol
wh
Explain mechanism of nested queries? SQL gives a mechanism for nesting subqueries. A subquery is a select from where expression that is nested within one more query. A common u
What is vertical fragmentation? Vertical fragmentation divides the relation by decomposing the scheme R of relation r.
What Is Sql? Structured Query Language (SQL) is a standard query language. It is usually used with all relational databases for data manipulation and definition. All the re
Three Level Architecture of DBMS or Logical DBMS Architecture The logical architecture defines how data in the database is perceived by users. It is not deals with how the da
Define the terms i) Entity type ii) Entity set Entity type: An entity type describes a collection of entities that have the similar attributes. Entity set: The set of all en
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