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Describe the responsibilities of the DBA and the database designer ? The responsibilities of DBA and database designer are: 1. Planning for the database's future storage needs
Differentiate between join and outer join? Outer joins return all rows from at least one of the tables or views mentioned within the FROM clause, as long as those rows get toge
Explain Foreign Key? Foreign Key - Let there are two relations (tables) R and S. Any candidate key of the relation R that is referred within the relation S is known as the fo
An instance of relational schema R (A, B, C) has distinct values of A including NULL values. then A is a candidate key or not? If relational schema R (A, B, C) has distinct val
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
My cut off date is very soon in a Database subject and i dont know how to solve anything in it
anyone have a textbook solutions case fair, 8 edition of vol 1 ?, please give me
we need example of 2phase locking
Explain Candidate key? Candidate Key - A candidate key is a minimal superkey, that can be used to uniquely identify a tuple in the relation.
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
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