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What is a super key? A super key is a set of one or more attributes that collectively permits us to recognize uniquely an entity in the entity set.
What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
anyone have a textbook solutions case fair, 8 edition of vol 1 ?, please give me
Which sorting technique is used to sort databases, whose sizes are very big? Give one such algorithm. Why do sorting techniques like quicksort, insertion sort, etc. not applied
word limit no mentioned
Consider a systems development project with the following data Activity Duration (weeks) Precedence Relationship 1. Software design
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
#ques Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a p
What are the four main characteristics of the database approach? The four major characteristics of the database approach are: 1. Self-describing nature of a database system. 2.
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