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What are the failures of Controlling Events Between Objects
Failure
Question 1 Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls? Question 2 With a necessary example explain (i)
Define average latency time. The average latency time of the disk is one-half the time for a full rotation of the disk.
Explain retrieval in QBE? Retrieval in QBE : A "GUI" for expressing queries. Based on the Domain Relational Calculus (DRC) Actually invented before GUIs. Very co
How to create values of structured type? Constructor functions are used to make values of structured types. A function with the similar name as a structured type is a construct
An important first step to the statistical analysis of data is to "get to know your data". The following tasks should contribute to this. (a) To the right of the dataset cons
tell me the functionality,advantages and disadvantages of student database
What is persistency? Persistency ensures which data is stored and that after the object is no longer available (program stops running) the data will be available to other users
How do I begin
Consider the relations EMPLOYEE(emp#, name) ASSIGNED_TO(project#, emp#) PROJECT(project#, project_name, chief) Express the subsequent queries in Relational Algebra (i) Ge
is Chipo carrying his baby
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