WGU C170, WGU Full Study Pack
A salesperson is authorized to sell many products and a product can be sold by many salespersons.
Which kind of binary relationship does this scenario describe? ✔✔Many-to-many
Which two e
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WGU C170, WGU Full Study Pack
A salesperson is authorized to sell many products and a product can be sold by many salespersons.
Which kind of binary relationship does this scenario describe? ✔✔Many-to-many
Which two examples are attributes? ✔✔An employee number
A meeting code
Which delete rule sets column values in a child table to a missing value when the matching data is
deleted from the parent table? ✔✔Set-to-Null
member_id INT UNSIGNED NOT NULL AUTO_INCREMENT,
PRIMARY KEY (member_id),
last_name VARCHAR(20) NOT NULL,
first_name VARCHAR(20) NOT NULL,
suffix VARCHAR(5) NULL,
expiration DATE NULL,
Which two columns are created as something other than variable-length strings in this statement?
✔✔member_id
expiration
This database table has ten different employee numbers in the first column. Employee_ID is the
primary
key. In addition, it has ten different names in the second column and two office addresses repeated
five
times each in the third column.
Which action should be used to translate this data into third normal form? ✔✔Move the data from
the third column into its own table.
A database manager starts to convert data that has been normalized into a form that conforms to
the
relational model. A simple primary key has been established and all the repeating groups have
been
deleted.
In which form is this data? ✔✔Second normal form
Two attributes in two related tables have the exact same domain of values. The attribute is a
primary
key in one table.
Which kind of key is the attribute in the other table? ✔✔Foreign
SELECT PRODNUM, PRODNAME
FROM PRODUCT
Which line should be added to the end of the statement to return the product numbers and product
names for products that cost 20 dollars? ✔✔WHERE PRODCOST=20;
What does WHERE identify in a basic SQL SELECT statement? ✔✔The rows to be included
Refer to the given SQL statement.
SELECT EMPNUM
FROM EMPLOYEE
Which line added to the end of the statement returns employee numbers of at least 1000?
✔✔WHERE EMPNUM >= 1000;
SELECT PRODNUM, SUM(QUANTITY)
FROM SALESPERSON
Which line, when added to the end of the statement, returns the total number of each kind of
product
by product number? ✔✔GROUP BY PRODNUM;
Which data definition language stat
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