Figure 2.1 Schema diagram for the database in Figure 1.2. STUDENT Name Student_number Class Major COURSE Course_name Course_number Credit_hours Department PREREQUISITE Course_number Prerequisite_number SECTION Section_identifier Course_number Semester Year Instructor GRADE REPORT Student number Section_identifier Grade
Figure 2.1 Schema diagram for the database in Figure 1.2. STUDENT Name Student_number Class Major COURSE Course_name Course_number Credit_hours Department PREREQUISITE Course_number Prerequisite_number SECTION Section_identifier Course_number Semester Year Instructor GRADE REPORT Student number Section_identifier Grade
Chapter4: Constraints
Section: Chapter Questions
Problem 9RQ: What is the difference between disabling a constraint and dropping a constraint?
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I have attached the problem below! Please view both attachments before answering. one attachment is the table and its contents and the other attachment is the question i need help finding a solution for. I am unsure on how i can go about attempting the question. I am using mysql terminal. Please explain in detail so i can fully understand . Thank you so much in advance!
![Figure 2.1
Schema diagram for the
database in Figure 1.2.
STUDENT
Name Student_number Class Major
COURSE
Course_name Course_number Credit_hours Department
PREREQUISITE
Course_number Prerequisite_number
SECTION
Section_identifier Course_number Semester Year Instructor
GRADE_REPORT
Student_number Section_identifier Grade](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2a1a7db6-8f8f-43d1-b008-03a5d653c710%2Fb42ed6b4-5932-4ef2-b5bd-13b28eaec53b%2F0q4pu8p_processed.png&w=3840&q=75)
Transcribed Image Text:Figure 2.1
Schema diagram for the
database in Figure 1.2.
STUDENT
Name Student_number Class Major
COURSE
Course_name Course_number Credit_hours Department
PREREQUISITE
Course_number Prerequisite_number
SECTION
Section_identifier Course_number Semester Year Instructor
GRADE_REPORT
Student_number Section_identifier Grade
![Consider Figure 2.1. In addition to constraints relating the values
of columns in one table to columns in another table, there are also
constraints that impose restrictions on values in a column or a
combination of columns within a table. One such constraint
forces that a column or a group of columns must be unique across
all rows in the table. For example, in the STUDENT table, the
StudentNumber column must be unique (to prevent two different
students from having the same Student Number). Identify the
column or the group of columns in the other tables that must be
unique across all rows in the table?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2a1a7db6-8f8f-43d1-b008-03a5d653c710%2Fb42ed6b4-5932-4ef2-b5bd-13b28eaec53b%2F5crifc8_processed.png&w=3840&q=75)
Transcribed Image Text:Consider Figure 2.1. In addition to constraints relating the values
of columns in one table to columns in another table, there are also
constraints that impose restrictions on values in a column or a
combination of columns within a table. One such constraint
forces that a column or a group of columns must be unique across
all rows in the table. For example, in the STUDENT table, the
StudentNumber column must be unique (to prevent two different
students from having the same Student Number). Identify the
column or the group of columns in the other tables that must be
unique across all rows in the table?
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