Oracle 12c: SQL
3rd Edition
ISBN: 9781305251038
Author: Joan Casteel
Publisher: Cengage Learning
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Chapter 4, Problem 5RQ
Which type of constraint should you use to ensure that every book has a profit margin between 15% and 25%?
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Chapter 4 Solutions
Oracle 12c: SQL
Ch. 4 - What is the difference between a PRIMARY KEY...Ch. 4 - How can you verify the constraints that exist for...Ch. 4 - A table can have a maximum of how many PRIMARY KEY...Ch. 4 - Which type of constraint can be used to make...Ch. 4 - Which type of constraint should you use to ensure...Ch. 4 - How is adding a NOT NULL constraint to an existing...Ch. 4 - When must you define constraints at the table...Ch. 4 - Prob. 8RQCh. 4 - What is the difference between disabling a...Ch. 4 - Prob. 10RQ
Ch. 4 - Prob. 1MCCh. 4 - Which of the following is not a valid constraint...Ch. 4 - Which of the following SQL statements is invalid...Ch. 4 - What is the maximum number of PRIMARY KEY...Ch. 4 - Prob. 5MCCh. 4 - How many NOT NULL constraints can be created at...Ch. 4 - The FOREIGN KEY constraint should be added to...Ch. 4 - What is the maximum number of columns you can...Ch. 4 - Which of the following commands can you use to...Ch. 4 - Prob. 10MCCh. 4 - In the initial creation of a table, if a UNIQUE...Ch. 4 - Which type of constraint should you use on a...Ch. 4 - Which of the following commands can be used to...Ch. 4 - Which of the following keywords allows the user to...Ch. 4 - Which of the following data dictionary objects...Ch. 4 - Which of the following types of constraints cant...Ch. 4 - Suppose you created a PRIMARY KEY constraint at...Ch. 4 - You’re creating a new table consisting of three...Ch. 4 - Which of the following types of restrictions can...Ch. 4 - Which of the following is the valid syntax for...Ch. 4 - Prob. 1HOACh. 4 - Prob. 2HOACh. 4 - Prob. 3HOACh. 4 - Add a column named Base_salary with a datatype of...Ch. 4 - Create a table named BOOK_STORES to include the...Ch. 4 - Add a constraint to make sure the Rep_ID value...Ch. 4 - Change the constraint created in Assignment #6 so...Ch. 4 - Create a table named REP_CONTRACTS containing the...Ch. 4 - Produce a list of information about all existing...Ch. 4 - Issue the commands to disable and then enable the...
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- Quality Bike Maps has produced four map designs for the local area. A limited amount of time (in minutes) is allocated to the printing, cutting and folding of each map. Additionally, at least one thousand of map designs A, B, and C must be printed. The profit per map is $1 for A and B and $2 for C and D. Using the Report below, which constraints are NOT binding? Variable Cells Cell Name $B$18: Map A $C$18 Map B SD$18 Map C $E$18: Map D www Constraints Cell Name SB$24 Print SB$25 Cut SB$26 Fold SBS27: PrintA $B$28 PrintB SB$29: PrintC O Print and Cut O Cut and Print A Final Reduced Objective Allowable Allowable Value Cost Coefficient Increase Decrease O Print and Fold O Print B and Print C 1500 1000 1000 2833.33 Final Value Print, Fold, Print B and Print C 0 0 0 0 15000 16500 20000 0.16667 1500 0 1000 -0.33333 1000 -0.33333 0.5 0 1: 1: 2 2 Shadow Constraint: Allowable Price R.H. Side Increase 15000 20000 20000 1000 1000 1000 1: 0.33333 0.33333 1000 1E+30 7000 500 1750 500 0.3333 1E+30…arrow_forwardWhat factors influence the decision to createan index on a field?arrow_forwardNow, you will calculate the highest-price house highest-price house sold for each agent when he or she served as a Dual Agent (DA). Use mixed references for ranges and the agent code condition in cell J3. Use relative cell references to the agent condition in cell E2. When you copy the formulas, use the paste Formulas options to preserve border formatting. In cell H2, insert the MAXIFS function in cell H2 to display the highest-price house sold by the first agent (cell E2) who was a Dual Agent (DA) (J3) for that house. Copy the function to the range H3:H4 and preserve the borders in the range H3:H4.arrow_forward
- What is the difference between a PRIMARY KEY constraint and a UNIQUE constraint?arrow_forward1) List all products with their highest unit price, i.e. not discounted.2) List the average unit price for each product category andthe average unit price without discountsarrow_forwardYou may find the following hierarchy useful when you code your classes. A fee invoice for an MS student should look like VALENCE COLLEGE ORLANDO FL 10101 The purpose of this project is to create a fee invoice application for students attending Valence College, a college in the State of Florida. There are two types of students: graduate (PhD and MS) and undergraduate. An out- of-state undergraduate student pays twice the tuition of a Florida-resident undergraduate student (all pay the same health and id fees of $35). A graduate student is either an PhD or an MS student. PhD students don't take any courses, but each has an advisor and a research subject. Each Phd student must supervise at least one lab. A lab can be supervised by more than one PhD student (Labs can't be supervised by undergraduate students nor MS students). MS students can only take graduate courses, and undergraduate students can only take undergraduate courses. At this time, Valence College offers the following list of…arrow_forward
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