Oracle SQL Fundamentals: Beginner-Level Quiz

Oracle SQL Fundamentals Quiz

Welcome to the Oracle SQL Fundamentals Quiz! This quiz is designed to test your foundational knowledge of SQL in Oracle databases. You’ll encounter questions on essential commands, data retrieval, manipulation, and basic query structures.

By completing this quiz, you'll reinforce your understanding of SQL basics and build confidence for more advanced topics.

1 / 20

SQL Server program code that is executed instead of an SQL command that needs to be processed is called a(n):

AFTER trigger

INSTEAD OF trigger

Begin trigger

BEFORE trigger

2 / 20

A ________ is a program that performs some common action on database data and that is stored in the database.

None of the above

Pseudofile

Trigger

Stored procedure

3 / 20

STATEMENT-level triggers are executed only once for the entire statement. True or False?

True

False

4 / 20

With which type of SQL Server recovery model, is no logging done?

Simple recovery

Full recovery

Differential recovery

Bulk-logged recovery

5 / 20

Which of the following is not an advantage of stored procedures?

Code sharing

Greater security

Increased network traffic

SQL can be optimized

6 / 20

What is an advantage of placing computations in SQL views?

To save users from having to write an expression.

All of the above

None of the above

To make saving of data easier

7 / 20

Embedded SQL is which of the following?

The process of making an application capable of generating specific SQL code on the fly

Hard-coded SQL statements in a trigger

Hard-coded SQL statements in a procedure

Hard-coded SQL statements in a program language such as Java

8 / 20

Bind variables improve performance through caching and reusing, reducing the need for parsing.

True

False

9 / 20

How many tables may be included with a join?

All of the above

10 / 20

Which of the clauses restricts the query to rows that meet a condition?

DESCRIBE

WHERE

ORDER BY

DISTINCT

11 / 20

To update an SQL view, the DBMS must be able to associate the column(s) to be updated with:

Particular column in a particular row

A particular row in a particular underlying table

A particular column in a particular row

A particular column in a particular underlying table

12 / 20

Which one of the following sorts rows in SQL?

SORT BY

ALIGN BY

ORDER BY

GROUP BY

13 / 20

Which of the following is true concerning a procedure?

They do not need to have a unique name.

They include procedural and SQL statements

You do not create them with SQL.

hey are the same thing as a function.

14 / 20

Each row of data in a table is uniquely identified by a:

Primary Keys

Unique Keys

Universal keys

Foreign Keys

15 / 20

Schemas improve query performance through quicker data retrieval by reducing the need for full table scans. True or False?

True

False

16 / 20

Which of this is not correct about Column Alias?

Is useful with calculations

Is Oracle vendor specific

Renames a column heading

Requires double quotation marks if it contains spaces or special characters or if it is case-sensitive

17 / 20

Which statement is true regarding operators used with subqueries?

The NOT IN operator is equivalent to IS NULL

The IN operator cannot be used in single-row subqueries

=ANY and =ALL operators have the same functionality

The <ANY operator means less than the maximum

18 / 20

Grant and revoke belongs to?

Data definition language (DDL)

Data control language (DCL)

Transaction control

Data manipulation language (DML)

19 / 20

Keywords cannot be abbreviated or split across lines. True or false?

True

False

20 / 20

Which operator will be evaluated first in the following SELECT statement?

SELECT (2+3*4/2-5) FROM dual;

A. *

D. -

B. +

C. /

Your score is

The average score is 20%

Oracle SQL Fundamentals is a vital area of knowledge for anyone working with Oracle databases. It covers the basic operations of querying, manipulating, and organizing data in an efficient and structured manner.

This quiz is ideal for anyone looking to strengthen their foundational knowledge of SQL in the context of Oracle databases.

Good luck!