Describe create table command

Assignment Help Programming Languages
Reference no: EM13930119

Kindly refer to the "CREATE TABLE" commands given at the end to answer the following questions.

(1a) Did the SQL programmer enforce the constraint that every doctor practices in a unique hospital? If so, how? If not, how do

you know, and how, if at all, could this constraint have been implemented?

(1b) Did the SQL programmer enforce the constraint that every patient has at least one doctor? If so, how? If not, how do you

know, and how, if at all, could this constraint have been implemented?

(1c) Did the SQL programmer enforce the constraint that every patient can be hospitalized in at most one hospital? If so, how? If

not, how do you know, and how, if at all, could this constraint have been implemented?

2. Write SQL queries to answer the following questions. Try to use a simple SELECT without sub-queries.

(a) Find all doctors who went to Harvard as their medical school and who have been practicing for at least 10 years.

(b) Find the names and SSNs of all doctors who have diagnosed anyone with an incurable disease.

(c) Find the patients who have made an appointment with a doctor who does not treat them.

 

Reference no: EM13930119

Questions Cloud

Term board of directors in term of management : Discuss and describe the term Board of Directors in term of management.
Investigate genetic processes : Investigate genetic processes, including those that occur during meiosis, and analyze data to solve basic genetic problems involving monohybrid and dihybrid crosses.
Discuss and describe the term glass ceiling : Discuss and describe the term Glass Ceiling in term of management.
Explain how the procedure would have stopped : Identify an internal control procedure that could have prevented the company's losses. Explain how the procedure would have stopped the embezzlement.
Describe create table command : Find the patients who have made an appointment with a doctor who does not treat them.
How ignorance about biology of ebola resulted in death : We can have a significant impact on peoples' behavior and attitudes by providing accurate and accessible (understandable) explanations. Recall how ignorance about the biology of Ebola resulted in the death of the aid workers who were murdered by t..
The equipment is worth-what is the cost of owning : Waldrop Corporation must install $200 of new equipment in its Ohio plant. It can obtain a bank loan for 100% of the required amount at 9% interest on the loan. Assume that Waldrop's tax rate is 34% and that the equipment's depreciation would be $100 ..
Which school has test scores over 900 : Which school has test scores over 900? Which district receives special invitations to attend the counselor conferences? and why is this so?
What is the net advantage to leasing : To finance some manufacturing tools it needs for the next 4 years, Waldrop Corporation is considering a leasing arrangement. Waldrop Corporation has no use for the machine beyond the expiration of the lease, and the machine has an estimated residual ..

Reviews

Write a Review

Programming Languages Questions & Answers

  Wt do you mean by procedural or algorithmic programming

what is procedural or algorithmic programming? what is object-oriented programming? what is the role of code reuse in

  Write application to input numbers in one dimensional array

Use a one dimensional array to solve the following problem: Write an application that inputs five numbers, each between 10 and 100, inclusive.

  Write down a method which is passed string argument

Write down a method, getFirstLine, which is passed a String argument and that returns first line. (Recall that lines are terminated with the "n" character.)

  Develop an encryption program

Your employer, SGA (Secretive government Agency) wants you to develop an encryption program. After doing some research you have two candidate algorithms.

  Provide unoptimized-optimized prefix using recursive rule

Where the recursive rule uses concatenation of strings, so F2 is "ab", F3 is "aba". Note that the length of Fn is the nth Fibonacci number. Provide unoptimized and optimized ‘prefix' (fail) function for F7.

  Write program that inputs single integer in digital river

A digital river is sequence of number where number following is n+ sum of its digits for example 12345=12345+15=12360. Write a program that inputs single integer n (1

  Computing first seven values of fibonacci number sequence

Write a program that uses a loop to compute the first seven values of the Fibonacci number sequence.

  Write program using while loop to output squares of integers

Write a program that uses while loop to perform the following steps:Output the sum of all the even numbers between firstnum and secondnum inclusive. Output all the numbers and their squares between firstnum and secondnum inclusive.

  Design classes account-checkingaccount and savingsaccount

Design and write 3 classes - Account, CheckingAccount, and SavingsAccount. Have CheckingAccount and SavingsAccount inherit from Account.

  Write program which bounces blue ball inside jpanel

Write a program which bounces blue ball inside a JPanel. The ball must begin moving with a mousePressed event. When the ball hits the edge of the JPanel.

  Write program to input number of hours worked

Write a program that allows the user to input the number of hours worked and hourly pay rate for employees and outputs their total pay.

  Write looping structure pseudocode accepting employee data

Write looping structure pseudocode which prompts user for employee data; application continues to accept data for new employees until user enters 0 for ID number to indicate desire to quit.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd