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what are the four different result types that can be returned from a subquery for each type explain what it is and
what is prototyping under what circumstances should prototyping be used under what circumstances should it not be
what is online analytical processing how is olap related to databases what is a pivot table and how are pivot tables
describe the fundamental principles in both the bell-lapadula and biba security models for each explain what sort of
task 1 - wireframe1create a wireframe page design for a special offer page for premier choice holidays the wireframe
you are the dba for the veryfine toy company and create a relation called employees with elds ename dept and salary for
you are a painter and have an internet store where you sell your paintings directly to the public you would like
1answer each of the following questions briey the questions are based on the following relational schemaempeid integer
1suppose that we have a ternary relationship r between entity sets a b and c such that a has a key constraint and total
1consider the relations students faculty courses rooms enrolled teaches and meets in dened in section 1521a list all
1dene the following terms relation schema relational database schema domain attribute attribute domain relation
1although you always wanted to be an artist you ended up being an ex-pert on databases because you love to cook data
1a company database needs to store information about employees iden-tied by ssn with salary and phone as attributes
a university database contains information about professors identied by social security number or ssn and courses
1 explain the following terms briey attribute domain entity relation-ship entity set relationship set one-to-many
1what is logical data independence and why is it important2explain the dierence between external internal and
1which of the following plays an important role in representing informa-tion about the real world in a database explain
1explain the dierence between logical and physical data independence2what are the responsibilities of a dba if we
why would you choose a database system instead of simply storing data in operating system files when would it make
1who are the typical system stakeholders the key players and what are their unique roles 2 seventy percent or more of
create a new query to list the model name full make name msrp mpg estimates and whether the vehicle is a hybrid only
research two asymmetric encryption algorithms for each algorithm list the key lengths used outline the encryption
1 focusing on who is bitcoin and the goals of company for economic progress and economic security describe the
clg lyk colg placement information and tieup with companys information 2studend login page nd student registration and
as a group describe and explain internet protocol security ipsec and then as a group decide who will be assigned the