Page 1 of 210
1
WGU D427 DATA MANAGEMENT APPLICATIONS OA
EXAM AND STUDY GUIDE LATEST 2024 ACTUAL
EXAM 400 QUESTIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (VERIFIED
ANSWERS) ALREADY GRADED A+ COMPLETE
WGU D427 DATA MANAGEMENT APPLICATIONS OA EXAM
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:
Add a Producer column with VARCHAR data type (max 50 chars).ALTER TABLE Movie ADD Producer VARCHAR(50);
The Movie table has the following columns:
ID - positive integer Title - variable-length string 1 / 4
Page 2 of 210
2 Genre - variable-length string RatingCode - variable-length string Year - integer
Write ALTER statements to make the following modifications to the Movie table:
Remove the Genre column.ALTER TABLE Movie DROP COLUMN Genre;
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:
Change the Year column's name to ReleaseYear, and change the data type to SMALLINT.ALTER TABLE Movie CHANGE COLUMN Year ReleaseYear SMALLINT;
The Movie table has the following columns:
ID - positive integer Title - variable-length string Genre - variable-length string 2 / 4
Page 3 of 210
3 RatingCode - variable-length string Year - integer
Write ALTER statements to make the following modifications to the Movie table:
- Add a Producer column with VARCHAR data type (max 50 chars).
- Remove the Genre column.
- 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 COLUMN Genre; ALTER TABLE Movie CHANGE COLUMN Year ReleaseYear SMALLINT;
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 BirthDate Babe Quarter Horse 15.3 2015-02-10 Independence Holsteiner 16.0 2017-03-13 3 / 4
Page 4 of 210
4 Ellie Saddlebred 15.0 2016-12-22 NULL Egyptian Arab 14.9 2019-10-12 INSERT INTO Horse (RegisteredName, Breed, Height, BirthDate) VALUES ('Babe', 'Quarter Horse', 15.3, '2015-02-10'), ('Independence', 'Holsteiner', 16.0, '2017-03-13'), ('Ellie', 'Saddlebred', 15.0, '2016-12-22'), (NULL, 'Egyptian Arab', 14.9, '2019-10-12');
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:
Change the height to 15.6 for horse with ID 2.UPDATE Horse SET Height = 15.6
WHERE ID = 2;
The Horse table has the following columns:
ID - integer, auto increment, primary key RegisteredName - variable-length string
- / 4