WGU D427 DATABASE MANAGEMENT
APPLICATIONS ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ - When you create the column definition (known as a column
constraint).
- When you use the CONSTRAINT keyword (known as a table
constraint). Answer: The CREATE TABLE command lets you define
constraints in two different places:
◉ 1. The items of interest are copied over into the index but the original
text is not disturbed in any way.
2. The items copied over into the index are sorted (alphabetized in the
index at the back of a book).
3. Each item in the index is associated with a "pointer" (in a book index
this is a page number) pointing to the place in the text where the item
can be found. Answer: The index in the back of a book has three key
elements that are also characteristic of information systems indexes:
◉ A signed number may be negative.
, An unsigned number cannot be negative. Answer: With integers,
remember the difference between signed and unsigned numbers!
◉ A% - The "%" means that any string of characters can follow
afterwards. The percent sign represents zero or more arbitrary regular
characters
A_ - The _ means that there will be exactly one letter following the A.
The underscore represents a single arbitrary regular character. Answer:
What are the two ways of using the LIKE command?
◉ access method. Answer: The way that we retrieve the data, based on it
being stored in a particular file organization, is called the _______
________.
◉ ALTAR TABLE TableName
Add ColumnName DataType
ALTAR TABLE TableName
DRIP ColumnName
ALTAR TABLE TableName
, CHANGE CurrentColumnName NewColumnName NewDataType.
Answer: The ALTAR Table adds, deletes, or modifies columns. What is
the syntax for each of these?
◉ AS
SELECT EmployeeNames AS Names
FROM Employee;. Answer: To simplify queries or result tables, a
column name can be replaced with an alias.
The alias follows the column name, separated by an optional _____
keyword.
◉ associative entity. Answer: represents a logical data structure that
holds the information related to the association between two or more
anchor entities.
◉ Attribute
Examples of attributes include an employee's employee number, the
weight of an automobile, a company's address, or the date of a sales
meeting. Answer: a property or characteristic of an entity.
◉ binary search
APPLICATIONS ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◉ - When you create the column definition (known as a column
constraint).
- When you use the CONSTRAINT keyword (known as a table
constraint). Answer: The CREATE TABLE command lets you define
constraints in two different places:
◉ 1. The items of interest are copied over into the index but the original
text is not disturbed in any way.
2. The items copied over into the index are sorted (alphabetized in the
index at the back of a book).
3. Each item in the index is associated with a "pointer" (in a book index
this is a page number) pointing to the place in the text where the item
can be found. Answer: The index in the back of a book has three key
elements that are also characteristic of information systems indexes:
◉ A signed number may be negative.
, An unsigned number cannot be negative. Answer: With integers,
remember the difference between signed and unsigned numbers!
◉ A% - The "%" means that any string of characters can follow
afterwards. The percent sign represents zero or more arbitrary regular
characters
A_ - The _ means that there will be exactly one letter following the A.
The underscore represents a single arbitrary regular character. Answer:
What are the two ways of using the LIKE command?
◉ access method. Answer: The way that we retrieve the data, based on it
being stored in a particular file organization, is called the _______
________.
◉ ALTAR TABLE TableName
Add ColumnName DataType
ALTAR TABLE TableName
DRIP ColumnName
ALTAR TABLE TableName
, CHANGE CurrentColumnName NewColumnName NewDataType.
Answer: The ALTAR Table adds, deletes, or modifies columns. What is
the syntax for each of these?
◉ AS
SELECT EmployeeNames AS Names
FROM Employee;. Answer: To simplify queries or result tables, a
column name can be replaced with an alias.
The alias follows the column name, separated by an optional _____
keyword.
◉ associative entity. Answer: represents a logical data structure that
holds the information related to the association between two or more
anchor entities.
◉ Attribute
Examples of attributes include an employee's employee number, the
weight of an automobile, a company's address, or the date of a sales
meeting. Answer: a property or characteristic of an entity.
◉ binary search
