menu
bartleby
search
close search
Hit Return to see all results

(check all that apply) Which of the following is true about constraint names?A) it can be used for DBA to identify a constraint easilyB) Two constraints can have the same name if they are located in two different tablesC) All constraints must be named uniquelyD) Constraint names are case sensitive

Question

(check all that apply) Which of the following is true about constraint names?
A) it can be used for DBA to identify a constraint easily
B) Two constraints can have the same name if they are located in two different tables
C) All constraints must be named uniquely
D) Constraint names are case sensitive

check_circleAnswer
Step 1

A) it can be used for DBA to identify a constraint easily:

Yes. Constraints are the rules that are applied on data types in table. Naming of constraint is done to differentiate between violations of constraints. Not only this is helpful for administrator and programmers, but also the names of constraints can be used for the program. This is far more reliable than trying to parse the error message. For example, if a query violates a constraint (insert, update, delete), SQL will create an error message containing the name of the constraint. If the name of the constraint is simple and concise, it will be easier to understand the error message but if the name of the constraint is a random, it will be much less obvious.

Step 2

B) Two constraints can have the same name if they are located in two different tables:

No. A constraint is also an object of the database so its name must be unique.

C) All constraints must be named uniquely:

Yes. Constraint name must be unique in order to identify the constraint in the future (e.g. if it needs to be eliminated in...

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Our solutions are written by experts, many with advanced degrees, and available 24/7

See Solution
Tagged in

Engineering

Computer Science

Related Computer Science Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: I was asked to add the three types of comments to this class, each consisting of the same statement ...

A: Java documentation comment: This comment is used to create documentation API. The syntax for this co...

question_answer

Q: Express the following binary number in decimal and hexadecimal forms:1001100.

A: Converting the binary number 1001100 into the decimal number:= 1* 26 + 0 * 25 + 0 * 24 + 1 * 23 + 1 ...

question_answer

Q: Python 3.7.4 Shell HW3Q3.py C:/Users/kristen/Desktop/HW303.py (3.74 File Edit Shell Debug Options Rē...

A: DescriptionTo resolve the error i.e. TypeError: 'int' object is not callable, we must correct the pa...

question_answer

Q: Describe a situation in which absolute denial of a service to a user ( that is, the user gets no res...

A: Denial of Service (DoS) :The Denial of Service (DoS) makes a resource (site, application, server) un...

question_answer

Q: OF 2019 x + X PG Difference between two given ti https://moodle.oakland.edu/plug X fn Course: CSI-14...

A: Program in C to calculate the order price by entering number of books, price of a book, tax per book...

question_answer

Q: If you are not able to specify the output of the above program exactly, explain why.

A: The sample output of the given program is:

question_answer

Q: Fill in the blanks in the scheduling table. One schedule has been started for you. Each column repre...

A: FIFO (First in first out) scheduling algorithm is a non-preemptive algorithm which executes the proc...

question_answer

Q: Consider the information stored in your personal computer. Do you currently have information stored ...

A: “Yes”, most of the individual users store their sensitive and confidential information in the person...

question_answer

Q: in python 2.2Write a program that prompts the user for two inputs: the unit cost of an item and the ...

A: round() function is used to round the number.Syntax of round function:round(number [, ndigit])number...

Sorry about that. What wasn’t helpful?