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Whst is logical schema ?
Logical schema is the entire database.
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
Chapter 10a review questions
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what is entity in database system?
Briefly describe the different kinds of users of a DBMS. Ans: Different sorts of DBMS users are: (a) Software Engineers: These are the people accountable for developing ap
Define in which normalisation form if an attribute of a composite key is dependent on an attribute of other composite key. Ans: 3NF A relation is in 3 NF if an attribute of
What is Thread splitting A thread of control is a path by which a set of state diagrams on that a single object is active at a time. Objects are shared between threads
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
Normal 0 false false false EN-US X-NONE X-NONE
What is a foreign key, and what is it used for? A foreign key is used to establish relationships between relations in the relational model. Technically, a foreign key is a colu
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