Compare and contrast the three phases of database design.
What will be an ideal response?
Three phases are conceptual database design, logical database design, and physical database design.
Conceptual database design constructs a model of the information used in an enterprise,
independent of all physical considerations. Logical database design is based on a specific data
model, but independent of all other physical considerations. Physical database design
constructs a description of the implementation of the database on secondary storage
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When an if statement is placed within the conditionally-executed code of another if statement, this is known as
a. complexity b. overloading c. nesting d. validation e. None of these
In the binary search, if the array being searched has 32 elements in it, how many elements of the array must be examined to be certain that the array does not contain the key? What about 1024 elements? Note: the answer is the same regardless of whether the algorithm is recursive or iterative.
What will be an ideal response?
Write a program in a class CharacterFrequency that counts the number of times a digit appears in a telephone number. Your program should create an array of size 10 that will hold the count for each digit from 0 to 9. Read a telephone number from the keyboard as a string. Examine each character in the phone number and increment the appropriate count in the array. Display the contents of the array.
What will be an ideal response?
Use this tab to convert text to a table
a. Home b. Insert c. Layout