SQL & Querying Quizzes, Questions & Answers

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Popular SQL & Querying Topics

DDL & DML

DDL & DML (5)

DQL & Aggregation

DQL & Aggregation (5)

DCL & TCL

DCL & TCL (5)

Functions & Expressions

Functions & Expressions (5)

Window Functions

Window Functions (5)

DDL and DML Quizzes

Difference Between DDL and DML Quiz

Test your understanding of database fundamentals with this comprehensive quiz on the difference between DDL and DML. DDL (Data Definition Language) and DML (Data Manipulation Langu...

Questions: 15 | Attempts: 12 | Last updated: May 01, 2026

Sample Question
What does DDL stand for?

Data Definition Language

Data Deletion Logic

Database Design Layout

Data Display Language

SQL DDL Basics Quiz

Test your understanding of SQL DDL Basics Quiz concepts with this medium-level assessment designed for grade 10 students. This quiz covers essential data definition language operat...

Questions: 15 | Attempts: 10 | Last updated: May 01, 2026

Sample Question
What does DDL stand for in SQL?

Data Definition Language

Data Delivery Logic

Database Design Layout

Dynamic Data Link

SQL DML Basics Quiz

Test your understanding of SQL DML Basics Quiz with this medium-difficulty assessment designed for Grade 10 students. This quiz covers essential Data Manipulation Language concepts...

Questions: 15 | Attempts: 10 | Last updated: May 01, 2026

Sample Question
Which SQL statement is used to add new records to a table?

INSERT

UPDATE

DELETE

SELECT

All DDL and DML Quizzes

DQL and Aggregation Quizzes

SQL Where Clause Basics Quiz

This SQL Where Clause Basics Quiz tests your understanding of filtering data in SQL queries. Learn to write WHERE conditions, use comparison operators, combine multiple conditions,...

Questions: 15 | Attempts: 14 | Last updated: May 01, 2026

Sample Question
Which SQL keyword is used to filter rows based on specific conditions?

WHERE

SELECT

FROM

ORDER BY

SQL Select Statement Basics Quiz

This SQL Select Statement Basics Quiz tests your understanding of data query language fundamentals and aggregation functions. You'll practice writing SELECT statements, filtering d...

Questions: 15 | Attempts: 13 | Last updated: May 01, 2026

Sample Question
Which keyword retrieves data from a database table?

SELECT

INSERT

UPDATE

DELETE

SQL Aggregate Functions Quiz

Test your understanding of SQL aggregate functions and data query language (DQL) concepts. This SQL Aggregate Functions Quiz covers essential techniques for summarizing data, inclu...

Questions: 16 | Attempts: 10 | Last updated: May 01, 2026

Sample Question
Which SQL aggregate function returns the total number of rows in a table?

COUNT()

SUM()

TOTAL()

ROWS()

All DQL and Aggregation Quizzes

DCL and TCL Quizzes

Difference Between DCL and TCL Quiz

This quiz evaluates your understanding of the difference between DCL and TCL in SQL and database management. DCL (Data Control Language) handles user permissions and access control...

Questions: 15 | Attempts: 21 | Last updated: May 01, 2026

Sample Question
What does DCL stand for in SQL?

Data Control Language

Database Creation Logic

Data Commit Language

Dynamic Calculation Layer

SQL DCL Basics Quiz

This SQL DCL Basics Quiz evaluates your understanding of Data Control Language commands that manage user permissions and access in databases. You'll test your knowledge of GRANT, R...

Questions: 16 | Attempts: 11 | Last updated: May 01, 2026

Sample Question
What does DCL stand for in SQL?

Data Control Language

Database Constraint Logic

Data Compilation Layer

Dynamic Connection Link

SQL TCL Basics Quiz

This SQL TCL Basics Quiz evaluates your understanding of Transaction Control Language in SQL. Learn to manage database transactions using COMMIT, ROLLBACK, and SAVEPOINT commands. ...

Questions: 15 | Attempts: 11 | Last updated: May 01, 2026

Sample Question
What does TCL stand for in SQL?

Transaction Control Language

Table Creation Language

Temporary Control Logic

Text Compression Library

All DCL and TCL Quizzes

Functions and Expressions Quizzes

SQL QUIZ 2: Functions

Functions(Char,Concat,Substr etc) Date Functions Numeric Functions(Sum,Avg etc) Usage of group by and Having with aggregate functions Use of IFNull and Coalease functio...

Questions: 10 | Attempts: 1501 | Last updated: Mar 21, 2025

Sample Question
Which one of the following queries will select the Number of Unique Departments from the Department Table below Department Number Employee Number 11 248525 11 267712 12 112456 11 234567 13 661231

Select count(*) from Department_Table

Select count(distinct DepartmentNumber) from Department_Table having distinct DepartmentNumber

Select count(distinct DepartmentNumber) from Department_Table

Select distinct departmentNumber from Department_Table

SQL Date Functions Basics Quiz

This SQL Date Functions Basics Quiz evaluates your understanding of essential date manipulation in SQL. You'll test your knowledge of common date functions like DATEADD, DATEDIFF, ...

Questions: 15 | Attempts: 11 | Last updated: May 02, 2026

Sample Question
What does the GETDATE() function return in SQL Server?

The current system date and time

The date from a specific table column

A formatted date string

The number of days since 1900

SQL Conditional Expressions Quiz

Test your understanding of SQL conditional expressions and how they control data retrieval and manipulation. This SQL Conditional Expressions Quiz covers IF, CASE, BETWEEN, IN, and...

Questions: 15 | Attempts: 11 | Last updated: May 02, 2026

Sample Question
Which SQL keyword is used to test if a value exists within a specified range?

BETWEEN

IN

LIKE

EXISTS

All Functions and Expressions Quizzes

Window Functions Quizzes

SQL RANK Function Quiz

Test your understanding of SQL window functions, focusing on the RANK function and related ranking techniques. This SQL RANK Function Quiz covers how RANK assigns row numbers withi...

Questions: 15 | Attempts: 12 | Last updated: May 01, 2026

Sample Question
What does the RANK() window function return when multiple rows have identical values in the ORDER BY clause?

Sequential numbers with no gaps

The same rank for tied rows, with gaps in the sequence

Unique ranks for every row

NULL for all tied rows

SQL ROW NUMBER Function Quiz

This SQL ROW NUMBER Function Quiz evaluates your understanding of row numbering and ranking in SQL window functions. Learn how to assign sequential numbers to rows, partition data,...

Questions: 15 | Attempts: 11 | Last updated: May 01, 2026

Sample Question
What does the ROW_NUMBER() function return?

A sequential integer for each row within a partition

The total count of rows in the table

The rank with ties receiving the same number

The percentage position of each row

SQL Window Function Basics Quiz

This SQL Window Function Basics Quiz evaluates your understanding of window functions\u2014a powerful SQL feature for analyzing data across rows and partitions. Learn how to use ag...

Questions: 15 | Attempts: 10 | Last updated: May 01, 2026

Sample Question
What is the primary purpose of a window function in SQL?

To perform calculations across a set of rows related to the current row

To delete rows from a table

To create new tables automatically

To replace GROUP BY clauses entirely

All Window Functions Quizzes

Top Trending SQL & Querying Quizzes

MS Access 101 Quiz

Getting some basic computer knowledge is something that most people are required to have in any business field. There are different computer applications used daily. How good are you when it comes to MS Access? Take up the quiz...

Questions: 50 | Attempts: 20786 | Last updated: Feb 19, 2025

Sample Question
Which object is used to create a form?

Tables and Queries

Tables only

Tables and reports

Queries and reports

SQL & PL/SQL Fundamentals Quiz

This Oracle SQL and PL/SQL Practice Quiz for Developers is designed to strengthen your understanding of essential Oracle database concepts, query structures, constraints, DDL/DML operations, functions, privileges, and PL/SQL...

Questions: 33 | Attempts: 19675 | Last updated: Nov 21, 2025

Sample Question
Which SQL statement contains an error?

SELECT * FROM emp WHERE empid = 493945

SELECT empid FROM emp

SELECT empid FROM emp WHERE empid = 493945

SELECT empid WHERE empid = 56949 AND lastname='SMITH'

MySQL Online Aptitude Test 1

The test contains 15 questions and there is no time limit.The test is not official, it's just a nice way to see how much you know, or don't know, about SQL.Count Your ScoreYou will get 1 point for each correct answer. At...

Questions: 15 | Attempts: 2402 | Last updated: Mar 21, 2025

Sample Question
What does SQL stands for?

Structure query language

Strong question language

Structured question language

Separate query language

Test Your DDL and DML Knowledge

Are you an avid coder? We have a special Oracle quiz for you! Test your DDL and DML Knowledge with this super informative, interesting quiz! We are here to challenge your knowledge! Let's see how well you perform in this...

Questions: 10 | Attempts: 4177 | Last updated: Mar 13, 2025

Sample Question
Examine the structure of the EMPLOYEES table: EMPLOYEE_ID NUMBER Primary Key FIRST_NAME VARCHAR2(25) LAST_NAME VARCHAR2(25) Which three statements inserts a row into the table?

INSERT INTO employees VALUES (NULL, 'JOHN','Smith');

INSERT INTO employees( first_name, last_name) VALUES ('JOHN','Smith');

INSERT INTO employees VALUES ('1000','JOHN','NULL');

INSERT INTO employees(first_name,last_name, employee_id) VALUES ('1000, 'john','Smith');

INSERT INTO employees (employee_id, first_name, last_name) VALUES ( 1000, 'john',");

SQL Multiple Choice Questions With Answers

Are you looking for some SQL multiple-choice questions with answers to make your preparation level better for the upcoming exam? Try our quiz below and see if you know the basics of SQL programming language or not. SQL is the...

Questions: 20 | Attempts: 12592 | Last updated: Jun 17, 2025

Sample Question
Full form of RDBMS is

Regional district management system

Relational database management system

Regular database management system

Regular district machine system

Popular SQL & Querying Quizzes

Oracle Pl/SQL Quiz

Ready to test your knowledge of Oracle PL/SQL? This quiz guides you through essential topics such as cursor operations, variable declarations, exception handling, control statements, and the integration of SQL within PL/SQL...

Questions: 29 | Attempts: 24309 | Last updated: Dec 8, 2025

Sample Question
Select incorrect variable declarations.

Foo_number varchar2(10);

Foo_text number(10);

Foo_char char(1) := 'Y';

Foo_time date;

Foo_text varchar2(10) := 'hello world';

The Ultimate Server Query Language Quiz

A server query language is designed so that users can retrieve specific information from a database. As a software developer, you should have some knowledge of the use of such languages. Do you believe you understand SQL...

Questions: 42 | Attempts: 13002 | Last updated: Mar 22, 2025

Sample Question
Which SQL function is used to count the number of rows in a SQL query?

COUNT()

NUMBER()

SUM()

Oracle Pl/SQL Practice Quiz: Test Yourself!

This advanced Oracle PL/SQL practice test is designed for developers, analysts, and database professionals who want to sharpen their SQL and PL/SQL skills. The quiz covers explicit and implicit cursors, variable declarations,...

Questions: 39 | Attempts: 10618 | Last updated: Dec 5, 2025

Sample Question
Select incorrect variable declaration

Foo_number varchar2(10)

Foo_text number(10)

Foo_char char(1) := 'Y'

Foo_time date

Recent SQL & Querying Quizzes

Oracle Pl/SQL Quiz

Questions: 29 | Attempts: 24309 | Last updated: Dec 8, 2025

Sample Question
Select incorrect variable declarations.

Foo_number varchar2(10);

Foo_text number(10);

Foo_char char(1) := 'Y';

Foo_time date;

Foo_text varchar2(10) := 'hello world';

The Ultimate Server Query Language Quiz

Questions: 42 | Attempts: 13002 | Last updated: Mar 22, 2025

Sample Question
Which SQL function is used to count the number of rows in a SQL query?

COUNT()

NUMBER()

SUM()

Oracle Pl/SQL Practice Quiz: Test Yourself!

Questions: 39 | Attempts: 10618 | Last updated: Dec 5, 2025

Sample Question
Select incorrect variable declaration

Foo_number varchar2(10)

Foo_text number(10)

Foo_char char(1) := 'Y'

Foo_time date

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