Course Introduction
Advanced SQL Practice Questions
Advanced SQL delves into complex database querying techniques and optimization strategies to enhance data management and retrieval in relational database systems. This course covers topics such as window functions, common table expressions (CTEs), recursive queries, advanced joins, subqueries, and set operations. Students will also explore performance tuning, indexing strategies, transaction control, and security implementations in SQL. Practical assignments strengthen proficiency by requiring the solution of real-world data problems, making students adept at manipulating large datasets and developing maintainable, efficient SQL code for enterprise-level applications.
Recommended Textbook
A Guide to SQL 8th Edition by Philip J. Pratt
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8 Chapters
600 Verified Questions
600 Flashcards
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Page 2
Chapter 1: Introduction to Premiere Products, Henry Books, and Alexamara Marina Group
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75 Verified Questions
75 Flashcards
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Sample Questions
Q1) Alexamara provides a variety of boat repair and maintenance services to the boat owners.
A)True
B)False
Answer: True
Q2) The ORDERS table consists of the order number, order date, and ____.
A) part number
B) number ordered
C) customer number
D) unit price
Answer: C
Q3) Alexamara provides boat maintenance service for owners at its two marinas. The SERVICE_CATEGORY table contains a ____.
A) slip ID
B) marina number
C) description of the category
D) marina name
Answer: C
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Chapter 2: Database Design Fundamentals
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75 Flashcards
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Sample Questions
Q1) Columns are sometimes called tuples.
A)True
B)False
Answer: False
Q2) A relation is in ____________________ normal form if it does not contain any repeating groups.
Answer: first 1NF
Q3) It is possible for the computer to generate values that are used as the primary key column.
A)True
B)False
Answer: True
Q4) An unnormalized relation is a relation that may contain repeating groups.
A)True
B)False
Answer: True
Q5) A relationship is an association between ____________________. Answer: entities
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Chapter 3: Creating Tables
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Sample Questions
Q1) Which of the following commands changes the value in a column?
A) UPDATE
B) CHANGE
C) REPLACE
D) ADD
Answer: A
Q2) Use the ____ data type for columns that contain letters and special characters and for columns containing numbers that will not be used in calculations.
A) CHAR
B) CHARACTER
C) TEXT
D) STRING
Answer: A
Q3) The data type DECIMAL(5,2) represents a number with ____________________ places to the left and two places to the right of the decimal.
Answer: three 3
Q4) You can delete the entire table using the ____________________ TABLE command.
Answer: DROP
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Chapter 4: Single-Table Queries
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75 Flashcards
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Sample Questions
Q1) In a SELECT statement, the FROM clause and the WHERE clause (when used) must appear on separate lines.
A)True
B)False
Q2) The ____________________ operator eliminates duplicate values in the query results.
Q3) You can use the ____________________ clause to limit the groups that are included.
Q4) When you need to sort data on two columns, the more important column is called the ____________________ sort key.
Q5) When you need to sort data on two columns, the less important column is called the ____ sort key.
A) double
B) primary
C) minor
D) foreign
Q6) The ____________________ operator uses one or more wildcard characters to test for a pattern match.
Q7) How do you construct the SELECT query?
Page 6
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Chapter 5: Multiple-Table Queries
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75 Flashcards
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Sample Questions
Q1) The product operation is commonly used.
A)True
B)False
Q2) When using a DBMS without an optimizer, the formulation of a query can make a difference in the speed with which the query is executed..
A)True
B)False
Q3) For two tables to be union compatible, the columns of the two tables must be identical.
A)True
B)False
Q4) If you precede the subquery by the ____ operator, the condition is true only if it satisfies all values produced by the subquery.
A) TRUE
B) ALL
C) IS ALL
D) ALWAYS
Q5) Describe the types of outer joins.
Q6) A subquery within a subquery is called a(n) ____________________ subquery.
Page 7
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Chapter 6: Updating Data
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Sample Questions
Q1) You can use the existing value in a column and a calculation to update a value.
A)True
B)False
Q2) A(n) ____________________ is a logical unit of work.
Q3) The ____ command is permanent.
A) SELECT
B) COMMIT
C) SAVE
D) UPDATE
Q4) If you decrease the size of a column, it is possible to lose some data currently in the column.
A)True
B)False
Q5) The DROP TABLE command creates an empty table.
A)True
B)False
Q6) You cannot commit and roll back data in SQL Server.
A)True
B)False
Q7) Describe the format for the UPDATE command.
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Chapter 7: Database Administration
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Sample Questions
Q1) An integrity ____________________ is a rule for the data in the database.
Q2) What are the benefits of using views?
Q3) You can only specify a primary key when you first create a table.
A)True
B)False
Q4) The correct command to allow user Thompson to delete rows in the CUSTOMER table would be: GRANT ____ ON CUSTOMER TO THOMPSON.
A) DROP
B) REMOVE
C) UPDATE
D) DELETE
Q5) You can create and use a(n) ____________________ to speed up the searching process significantly.
Q6) The privilege ____ can be granted to retrieve data.
A) SELECT
B) UPDATE
C) RETRIEVE
D) READ
Q7) ____________________ is the prevention of unauthorized access to a database.
Q8) What are the disadvantages of using an index? Page 9
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Page 10
Chapter 8: SQL Functions and Procedures
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Sample Questions
Q1) PL/SQL commands have a certain format and cannot include any blank lines in the code.
A)True
B)False
Q2) In PL/SQL, procedural code appears between the BEGIN and END commands. A)True
B)False
Q3) In the function UPPER(LAST_NAME), the item in parentheses (LAST_NAME) is called the ____________________ for the function.
Q4) In Microsoft Access, programs are written in ____________________, which does not support embedded SQL commands directly in the code.
Q5) DBMS_OUTPUT is a package that contains multiple procedures, including PUT_LINE. A)True
B)False
Q6) In T-SQL, all arguments start with the ampersand (&) symbol.
A)True
B)False
Q7) A(n) ____________________ is a computer that is connected to a network and has access through the server to the database.
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