DELETE FROM Enrollments WHERE CourseID EnrollmentID= 5;Group of answer choicesKey constraintReferential integrity constraintNo ViolationEntity integrity constraint
Question
DELETE FROM Enrollments WHERE CourseID EnrollmentID= 5;Group of answer choicesKey constraintReferential integrity constraintNo ViolationEntity integrity constraint
Solution
The statement you provided seems to be a SQL command to delete a record from the "Enrollments" table where the "CourseID EnrollmentID" equals 5. However, the syntax of the command is incorrect.
The correct syntax should be:
DELETE FROM Enrollments WHERE CourseID = 5 AND EnrollmentID = 5;
This command will delete all records from the "Enrollments" table where both the "CourseID" and "EnrollmentID" are equal to 5.
If you try to execute the command and it fails, it could be due to one of the following constraints:
-
Key Constraint: This occurs when you try to delete a record that is being referenced by another table.
-
Referential Integrity Constraint: This is similar to the key constraint. It prevents you from deleting a record if there is a foreign key in another table referencing it.
-
Entity Integrity Constraint: This ensures that the primary key of a table is unique and not null. If you're trying to delete a record based on a null or duplicate primary key, you'll violate this constraint.
Without more context, it's hard to say which constraint would be violated by your command. However, given the syntax of your command, it's likely that no violation would occur because the command wouldn't execute due to the syntax error.
Similar Questions
UPDATE Enrollments SET EnrollmentID = 1, CourseID = 999 WHERE EnrollmentID = 6;Group of answer choicesNo ViolationKey constraintReferential integrity constraintEntity integrity constraint
INSERT INTO Enrollments (EnrollmentID, StudentID, CourseID, EnrollmentDate) VALUES (1, 10, 101, '2023-09-05');Group of answer choicesReferential integrity constraintKey constraintEntity integrity constraintNo Violation
UPDATE Courses SET InstructorID = 1WHERE CourseID = 102;Group of answer choicesEntity integrity constraintKey constraintNo ViolationReferential integrity constraint
INSERT INTO Courses (CourseID, CourseName, Credits, InstructorID) VALUES (101, NULL, 3, 1);Group of answer choicesEntity integrity constraintReferential integrity constraintKey constraintNo Violation
Check all the constraints that the operations below violate. Flag question: Question 6Question 6Tips2 ptsUPDATE Enrollments SET StudentID = 10, CourseID = 999 WHERE EnrollmentID = 1;Group of answer choicesNo ViolationReferential integrity constraintKey constraintEntity integrity constraint
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.