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About the test:

The MySQL Online Test uses scenario-based MCQs to evaluate candidates on their proficiency in using MySQL, including their knowledge of SQL queries, database design, normalization, indexing, transactions, and stored procedures. The test aims to evaluate a candidate's ability to work with MySQL databases and use its various features to manage and manipulate data.

Covered skills:

  • MySQL
  • SQL Queries
  • Indexing
  • Data Manipulation Language
  • Views
  • Triggers
  • Database Design
  • Normalization
  • Joins
  • Data Definition Language
  • Stored Procedures
  • Transactions

9 reasons why
9 reasons why

Adaface MySQL Test is the most accurate way to shortlist MySQL Developers



Reason #1

Tests for on-the-job skills

The MySQL Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Able to design and create efficient database structures
  • Proficient in writing SQL queries for data retrieval and manipulation
  • Experienced in database normalization to minimize redundancy and improve data integrity
  • Skilled in indexing techniques for optimizing query performance
  • Able to write complex SQL joins for data extraction from multiple tables
  • Familiar with data manipulation language (DML) for data insertion, updating, and deletion
  • Knowledgeable in data definition language (DDL) for creating and modifying database objects
  • Experienced in working with views for simplifying complex query logic
  • Proficient in writing stored procedures for encapsulating common operations
  • Skilled in implementing triggers to automate actions based on database events
  • Knowledgeable in managing transactions to ensure data consistency and integrity
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 10,000+ questions. The actual questions on this MySQL Online Test will be non-googleable.

🧐 Question

Medium

Multi Select
JOIN
GROUP BY
Solve
Consider the following SQL table:
 image
How many rows does the following SQL query return?
 image

Medium

nth highest sales
Nested queries
User Defined Functions
Solve
Consider the following SQL table:
 image
Which of the following SQL commands will find the ‘nth highest Sales’ if it exists (returns null otherwise)?
 image

Medium

Select & IN
Nested queries
Solve
Consider the following SQL table:
 image
Which of the following SQL queries would return the year when neither a football or cricket winner was chosen?
 image

Medium

Sorting Ubers
Nested queries
Join
Comparison operators
Solve
Consider the following SQL table:
 image
What will be the first two tuples resulting from the following SQL command?
 image

Hard

With, AVG & SUM
MAX() MIN()
Aggregate functions
Solve
Consider the following SQL table:
 image
How many tuples does the following query return?
 image

Medium

Exists Where
Solve
Consider the following MySQL tables:
 image
What cids are returned by the following MySQL query for the above instance of the tables?
 image

Medium

Count, Distinct, SubQuery
Solve
Consider the following MySQL tables:
 image
What will be the output of the following MySQL query?
 image

Medium

Having, Group By
Solve
Consider the following MySQL table. 
 image
How many rows are returned for following MySQL query?
 image
🧐 Question🔧 Skill

Medium

Multi Select
JOIN
GROUP BY

2 mins

SQL
Solve

Medium

nth highest sales
Nested queries
User Defined Functions

3 mins

SQL
Solve

Medium

Select & IN
Nested queries

3 mins

SQL
Solve

Medium

Sorting Ubers
Nested queries
Join
Comparison operators

3 mins

SQL
Solve

Hard

With, AVG & SUM
MAX() MIN()
Aggregate functions

2 mins

SQL
Solve

Medium

Exists Where

2 mins

MySQL
Solve

Medium

Count, Distinct, SubQuery

2 mins

MySQL
Solve

Medium

Having, Group By

2 mins

MySQL
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
Multi Select
JOIN
GROUP BY
SQL
Medium2 mins
Solve
nth highest sales
Nested queries
User Defined Functions
SQL
Medium3 mins
Solve
Select & IN
Nested queries
SQL
Medium3 mins
Solve
Sorting Ubers
Nested queries
Join
Comparison operators
SQL
Medium3 mins
Solve
With, AVG & SUM
MAX() MIN()
Aggregate functions
SQL
Hard2 mins
Solve
Exists Where
MySQL
Medium2 mins
Solve
Count, Distinct, SubQuery
MySQL
Medium2 mins
Solve
Having, Group By
MySQL
Medium2 mins
Solve
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment MySQL Online Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the MySQL Online Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

View sample scorecard
Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the MySQL Assessment Test

Why you should use Pre-employment MySQL Online Test?

The MySQL Online Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • Writing complex SQL queries to retrieve and manipulate data
  • Designing efficient database schema and normalization techniques
  • Creating indexes to optimize database performance
  • Understanding and implementing joins to retrieve data from multiple tables
  • Working with stored procedures for encapsulating logic
  • Implementing triggers to enforce data integrity
  • Understanding and utilizing transactions for data consistency
  • Utilizing data definition language (DDL) for creating and managing database objects
  • Creating and managing views to simplify data access
  • Applying data manipulation language (DML) for modifying and deleting data

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the MySQL Online Test?

  • MySQL

    MySQL is an open-source relational database management system that is widely used for storing and managing large volumes of data. It is fast, reliable, and provides excellent scalability, making it a popular choice for various applications. The MySQL skill is measured in this test to assess the candidate's ability to work with databases and perform tasks such as creating, modifying, and querying tables.

  • Database Design

    Database design is the process of creating a structure and layout for a database that ensures efficient data storage and retrieval. It involves defining the tables, relationships, and constraints based on the requirements of the system. Measuring the database design skill in this test helps evaluate the candidate's ability to design a well-structured database that meets the needs of the application.

  • SQL Queries

    SQL (Structured Query Language) is a programming language used for managing relational databases. It allows users to retrieve, manipulate, and analyze data stored in tables using various types of queries. Testing the SQL query skill in this test helps assess the candidate's proficiency in writing efficient and accurate queries to retrieve specific data from the database.

  • Normalization

    Normalization is the process of organizing data in a database to eliminate redundancy and dependency issues. It involves breaking down data into smaller, manageable tables and defining relationships between them. Evaluating the candidate's knowledge of normalization in this test helps ensure they can design and maintain databases that adhere to best practices and minimize data integrity problems.

  • Indexing

    Indexing is a technique used to improve the performance of database queries by creating data structures, called indexes, that provide quick access to specific data. It involves selecting appropriate columns to create indexes on and optimizing their usage. Measuring the indexing skill in this test helps determine the candidate's ability to optimize query performance and optimize the overall database efficiency.

  • Joins

    Joins in SQL are used to combine rows from two or more tables based on related columns between them. They allow for the retrieval of data from multiple tables by establishing relationships and specifying join conditions. Testing the join skill in this test helps evaluate the candidate's ability to retrieve and combine data from multiple tables using various types of joins.

  • Data Manipulation Language

    Data Manipulation Language (DML) is a subset of SQL used for performing actions such as inserting, updating, and deleting data in a database. It allows users to modify the content of tables to reflect changes in the application. Assessing the DML skill in this test helps ensure the candidate can manipulate data accurately and efficiently.

  • Data Definition Language

    Data Definition Language (DDL) is a subset of SQL used for creating, modifying, and deleting database structures and objects. It includes commands to create tables, define constraints, and alter the database schema. Measuring the DDL skill in this test helps evaluate the candidate's ability to design and manage the structure of a database effectively.

  • Views

    Views in SQL are virtual tables created based on the result of a predefined query. They provide a way to simplify complex queries, enhance data security, and improve query performance. Evaluating the view skill in this test helps determine the candidate's proficiency in creating and utilizing views to facilitate data retrieval and manipulation.

  • Stored Procedures

    Stored procedures are precompiled database programs that are stored in the database. They allow for the execution of complex tasks and logic on the server-side, reducing network traffic and improving performance. Testing the stored procedure skill in this test helps assess the candidate's ability to design, write, and manage stored procedures to optimize database performance and enhance application functionality.

  • Triggers

    Triggers in SQL are a set of actions or instructions that are automatically executed in response to a specific event, such as an insert, update, or delete operation on a table. They help enforce data integrity, implement complex business rules, and maintain consistency in the database. Measuring the trigger skill in this test helps determine the candidate's proficiency in designing and implementing triggers to automate database actions and ensure data integrity.

  • Transactions

    Transactions in databases ensure the atomicity, consistency, isolation, and durability of multiple database operations as a single unit of work. They help maintain data integrity and prevent data inconsistencies in case of failures or concurrent access. Assessing the transaction skill in this test helps evaluate the candidate's knowledge of transaction management and their ability to design and implement robust and reliable applications.

  • Full list of covered topics

    The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for MySQL Online Test to be based on.

    MySQL syntax
    Database design principles
    Database schema
    Primary key
    Foreign key
    Table normalization
    Index types
    Query optimization
    Inner join
    Outer join
    Cross join
    Natural join
    Self join
    Union
    Subqueries
    Aggregate functions
    Group by
    Having clause
    Data insertion
    Data updating
    Data deletion
    Database creation
    Table creation
    View creation
    Stored procedure creation
    Trigger creation
    Transaction management
    Views vs. tables
    Stored procedures vs. functions
    Query performance tuning
    Database normalization forms
    Indexes vs. full table scans
    Query execution plan
    Data integrity constraints
    Views with multiple tables
    Stored procedure parameters
    Triggers on insert, update, and delete
    ACID properties
    Locking and concurrency control
    Error handling in stored procedures
    Backup and recovery
    Data import and export
    Data types in MySQL
    Schema modification
    Database versioning
    Database security
    Database migration
    Data replication
    Database connectivity
    Database performance monitoring
    Query caching
    Data encryption
    Database backups
    Database triggers
    Database partitioning
    Normalization principles

What roles can I use the MySQL Online Test for?

  • MySQL Developer
  • MySQL Administrator
  • Database System Administrator
  • SQL Consultant
  • Data Analyst

How is the MySQL Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Optimizing database performance through query tuning
  • Managing database security and access controls
  • Implementing complex data validation and constraints
  • Utilizing MySQL functions and operators for data manipulation
  • Understanding and implementing data replication and backup strategies
  • Designing and implementing database backup and recovery plans
  • Performance tuning through query optimization and index management
  • Troubleshooting and resolving database performance issues
  • Working with large datasets and optimizing data storage
  • Designing and implementing database migration and upgrade plans
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The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


85%
reduction in screening time

MySQL Hiring Test FAQs

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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