Database Programming Final Exam Review
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When data is produced and stored as numeric, textual, or visual
information, it varies in _____.
format
What does a user that interacts with a database use to read and
write data?
Database Management System
Which role focuses on creating software that interacts with a
database?
Programmer
Which database role focuses on database storage, response
times, and optimization?
Designer
Which concept relates to software that reads and writes data in a
database?
Management system
A database management system reads and writes data in a
database, and _____.
Ensures consistency and availability
What design consideration would apply to a database that has
special performance requirements?
Ensuring data is consistent with structural rules
If a database system is processing three queries as part of a
The successful query results are reversed, and the transaction is
transaction and the third query fails, what happens to the transcanceled.
action?
How does a database system protect data when concurrent
transactions occur?
Preventing multiple transactions with the same data at the same
time.
In terms of database architecture, which component translates
the query processor instructions into low-level file-system commands and is responsible for indexing the data?
Storage manager
Which type of database system is optimized for big data?
NoSQL
When a user interacts with a database, they can use a _____ to
modify data with commands.
Query Language
A database administrator creates a MySQL statement with incorrect syntax. What does MySQL Workbench display when the
statement is executed?
Error code
Which option is found on the Schemas tab in MySQL Workbench?
A list of available databases.
The _____ SQL statement does not alter any database data.
SELECT
When using the MySQL Command-Line Client, which character
ends a command?
;
When using a SQL statement to create a table, which data type
is used to store a fractional value?
DECIMAL
When using the MySQL Workbench GUI, which icon will execute
an SQL statement?
Lighting bolt
A database administrator uses which two SQL statements to view
and then modify existing customer balances with a late fee?
SELECT, UPDATE
A database designer installs MySQL Community Edition to create
a database. Which account does the designer use to gain full
control of MySQL?
Root
A user creates a table by using a SQL statement. The data type
VARCHAR(11) is part of the statement. What does the value of
(11) represent?
The number of characters allowed for the data type.
In the following ER diagram, what does 'AlbumTitle' represent?
Attribute
The analysis phase of database design includes which process?
Specifying requirements that are not dependent on a specific
database system.
What links a host programming language to a database system?
API
A database _____ is the implementation of database requirements in SQL with CREATE TABLE statements.
Entity
Which principle defines data independence?
Physical design never affects query results.
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Database Programming Final Exam Review
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In a relational database model, which concept refers to a finite
sequence of values that are derived from defined domains?
Tuple
What is the result of a relational operation?
Table
A database administrator creates a new relational database, and
a primary key is assigned within a table to assist with governing
data. What does the administrator accomplish with this structural
rule?
Unique identification of individual rows in the table
In a relational database model, an attribute refers to which concept?
A uniquely named tuple position
A _____ is a collection of values with no inherent order.
Set
What data type stores binary values?
BLOB
Which data type should a database use to store negative numbers?
INT
A _____ is a collection of values that are of the same type.
column
When only one value exists in each cell, a table is known to be
_____.
normalized
A relational database uses _____ to structure all data.
tables
A value that is used in a computation is known as a/an _____.
operand
Evaluate the given data and determine the correct result from the
statement.
SELECT SUM(cost) + SUM(markup)
FROM profit;
485
In MySQL, what is the result of TRUE AND NULL?
NULL
In MySQL, what is the result of TRUE OR NULL?
TRUE
A NULL value represents _____ data.
missing
A column, or group of columns, that serves as the unique identifier
in a relational database table is called a/an _____.
primary key
Which two rules apply to primary keys?
Values must be unique and may not be NULL
Refer to the Teacher and Class tables. The TeacherID in the
Class table references the TeacherID in the Teacher table. The
TeacherID in the Class table is a/an _____.
foreign key
Which statement is not a special case of foreign keys?
Foreign key referring to a foreign key in the same table
A pair of related values in a database is a(n) _____.
fact
All _____ columns depend on the _____ for a table to be in first
normal form.
non-key, primary key
Redundancy is possible in a _____ normal form table when one
non-key column depends on another non-key column.
second
The EmployeeWorkspace table has a composite key of (EmployeeID, WorkspaceID). WorkHours depends on (EmployeeID,
WorkspaceID), and EmployeeLastName depends on EmployeeID. Which column must be removed so EmployeeWorkspace
is in second normal form?
WorkspaceID
When a table is in _____, all non-key columns depend on the
_____ and no other columns.
third normal form, whole primary key
What does SQL stand for?
Structured Query Language
UPDATE, SELECT, and ORDER BY are _____ in an SQL statement.
keywords
In the SQL code below, which of the following is an identifier?
UPDATE Product
SET UnitPrice = 9.50
WHERE ProductId = 20;
Product
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Which language defines statements used for creating and dropping tables?
Data Definition Language
The statement below is an example from which SQL sublanguage? SELECT ProductName
FROM Product;
Data Query Language
What is the correct statement for creating a database called
reservationDB?
CREATE DATABASE reservationDB;
A database system has a database called onlineShop. What is
the result of a CREATE statement that tries to create onlineShop The statement produces an error that the database already exists.
a second time?
What is the correct statement for deleting a database?
DROP DATABASE (database name);
What should be added to the SQL statements to produce the
Result table below?
USE _____;
SHOW _____;
onlineShop, TABLES
Choose the best data types to replace XXX and YYY.
CREATE TABLE Product (
ProductId INT,
ProductName XXX, UnitPrice YYY
);
VARCHAR(50), DECIMAL(8, 2)
How many columns are created by the SQL statement below?
CREATE TABLE
Supplier (
SupplierId INT NOT NULL AUTO_INCREMENT,
CompanyName VARCHAR(40),
ContactName VARCHAR(50),
City VARCHAR(40),
Country VARCHAR(40),
Phone VARCHAR(30)
);
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What is the correct SQL statement for deleting the table Supplier?
DROP TABLE Supplier;
Which SQL statement adds a new column Fax to the Supplier
table?
ALTER TABLE Supplier
ADD Fax VARCHAR(30);
Which SQL statement deletes the City column from the Supplier
table?
ALTER TABLE Supplier
DROP City;
A/An _____ is a rule enforced on a table's data.
constraint
Which column is best to replace XXX in the SQL statement
below?
CREATE TABLE Supplier (
SupplierId INT NOT NULL AUTO_INCREMENT,
CompanyName VARCHAR(40),
ContactName VARCHAR(50),
Phone VARCHAR(30),
PRIMARY KEY (XXX)
);
SupplierId
A database designer wants to create three tables: Supplier, Product, and Country. The Supplier table has a CountryId column with
values that must appear in the Country table's CountryId column.
The Product table has an auto-increment column. Which table's
CREATE TABLE statement(s) must specify a FOREIGN KEY?
Supplier
What foreign key action should be added to ensure that if a supplier is removed from the Supplier table, the products associated
with the same supplier are also removed?
CREATE TABLE Product (
ProductId INT NOT NULL AUTO_INCREMENT,
ProductName VARCHAR(50),
UnitPrice DECIMAL(5,2),
ON DELETE CASCADE
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Database Programming Final Exam Review
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SupplierId INT,
PRIMARY KEY (ProductId),
FOREIGN KEY (SupplierId) REFERENCES Supplier(SupplierId)
_____
);
What should be added so NULL values are not allowed in ProductName?
CREATE TABLE Product (
ProductId INT AUTO_INCREMENT,
ProductName _____,
UnitPrice DECIMAL(5,2),
SupplierId INT,
PRIMARY KEY (ProductId)
);
VARCHAR(50) NOT NULL
A _____ is a type of UNIQUE constraint applied to two or more
columns.
table-level constraint
A _____ constraint is used to define a column value that is not
NULL when no value is provided.
DEFAULT
Which of the following values violates the CHECK constraint
below?
CREATE TABLE Customer (
CustomerId INT AUTO_INCREMENT,
Name VARCHAR(60),
Age INT CHECK (Age BETWEEN 18 AND 50),
ShippingAddress VARCHAR(200),
PRIMARY KEY (CustomerId)
);
(456, "Sarah Mcgraw", 61, "12301 270th Pl, Seattle, WA 98126")
Which of the following is not true about the INSERT statement?
A single INSERT statement can only add one row.
Which statement selects all rows and just the ProductName and
Size columns from the Product table?
SELECT ProductName, Size FROM Product;
Complete the ORDER BY clause to sort the Products by ProductName alphabetically, then in decreasing Quantity.
SELECT ProductName, Size, Quantity, SupplierId
FROM Product
ORDER BY _____ ;
ProductName, Quantity DESC
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