WGU - D427 Data Management -
Applications ZyBooks Labs 7 and 8
7.1 LAB - Alter Movie table
The Movie table has the following columns:
ID - positive integer
Title - variable-length string
Genre - variable-length string
RatingCode - variable-length string
Year - integer
Write ALTER statements to make the following modifications to the Movie
table:
1. Add a Producer column with VARCHAR data type (max 50 chars).
2. Remove the Genre column.
3. Change the Year column's name to ReleaseYear, and change the data type
to SMALLINT.
,ALTER TABLE Movie
ADD Producer VARCHAR(50);
ALTER TABLE Movie
DROP Genre;
ALTER TABLE Movie
CHANGE Year ReleaseYear SMALLINT;
7.2 LAB - Insert rows into Horse table
The Horse table has the following columns:
ID - integer, auto increment, primary key
RegisteredName - variable-length string
Breed - variable-length string, must be one of the following: Egyptian Arab,
Holsteiner, Quarter Horse, Paint, Saddlebred
Height - decimal number, must be between 10.0 and 20.0
BirthDate - date, must be on or after Jan 1, 2015
Insert the following data into the Horse table:
RegisteredName Breed Height
INSERT INTO Horse (RegisteredName, Breed, Height, BirthDate)
VALUES ('Babe', 'Quarter Horse', 15.3, '2015-02-10');
, INSERT INTO Horse (RegisteredName, Breed, Height, BirthDate)
VALUES ('Independence', 'Holsteiner', 16.0, '2017-03-13');
INSERT INTO Horse (RegisteredName, Breed, Height, BirthDate)
VALUES ('Ellie', 'Saddlebred', 15.0, '2016-12-22');
INSERT INTO Horse (Breed, Height, BirthDate)
VALUES ('Egyptian Arab', 14.9, '2019-10-12');
7.3 LAB - Update rows in Horse table
The Horse table has the following columns:
ID - integer, auto increment, primary key
RegisteredName - variable-length string
Breed - variable-length string, must be one of the following: Egyptian Arab,
Holsteiner, Quarter Horse, Paint, Saddlebred
Height - decimal number, must be ≥ 10.0 and ≤ 20.0
BirthDate - date, must be ≥ Jan 1, 2015
Make the following updates:
1.- Change the height to 15.6 for horse with ID 2.
2.- Change the registered name to Lady
UPDATE Horse
SET Height = 15.6
WHERE ID = 2;