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DAT/380 Week 3 LAB 3.12 - Create LessonSchedule table with FK constraints

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DAT/380 Week 3 LAB 3.12 - Create LessonSchedule table with FK constraints


Two tables are created:
Horse with columns:
ID - integer, primary key
RegisteredName - variable-length string


Student with columns:
ID - integer, primary key
FirstName - variable-length string
LastName - variable-length string


Create the LessonSchedule table with columns:
HorseID - integer with range 0 to 65 thousand, not NULL, partial primary key, foreign key references Horse(ID)
StudentID - integer with range 0 to 65 thousand, foreign key references Student(ID)
LessonDateTime - date/time, not NULL, partial primary key


If a row is deleted from Horse, the rows with the same horse ID should be deleted from LessonSchedule automatically.


If a row is deleted from Student, the same student IDs should be set to NULL in LessonSchedule automatically.


Note: Table and column names are case sensitive in the auto-grader.


CREATE TABLE Horse (
ID SMALLINT UNSIGNED AUTO_INCREMENT,
RegisteredName VARCHAR(15),
PRIMARY KEY (ID)
);


CREATE TABLE Student (
ID SMALLINT UNSIGNED AUTO_INCREMENT,
FirstName VARCHAR(20),
LastName VARCHAR(30),
PRIMARY KEY (ID)
);


-- Your SQL statements go here

DAT/380 Week 3 LAB 3.12 - Create LessonSchedule table with FK constraints

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DAT/380 Week 3 LAB 3.12 - Create LessonSchedule table with FK constraints

Two tables are created:
Horse with columns:
ID - integer, primary key
RegisteredName - variable-length string

Student with columns:
ID - integer, primary key
FirstName - variable-length string
LastName - variable-length string

Create the LessonSchedule table with columns:
HorseID - integer with range 0 to 65 thousand, not NULL, partial primary key, foreign key references Horse(ID)
StudentID - integer with range 0 to 65 thousand, foreign key references Student(ID)
LessonDateTime - date/time, not NULL, partial primary key

If a row is deleted from Horse, the rows with the same horse ID should be deleted from LessonSchedule automatically.

If a row is deleted from Student, the same student IDs should be set to NULL in LessonSchedule automatically.

Note: Table and column names are case sensitive in the auto-grader.

CREATE TABLE Horse (
ID SMALLINT UNSIGNED AUTO_INCREMENT,
RegisteredName VARCHAR(15),
PRIMARY KEY (ID)
);

CREATE TABLE Student (
ID SMALLINT UNSIGNED AUTO_INCREMENT,
FirstName VARCHAR(20),
LastName VARCHAR(30),
PRIMARY KEY (ID)
);

-- Your SQL statements go here

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[profiler]
Memory usage: real: 18350080, emalloc: 18014728
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