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JavaScript and SQL Online Test

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The JavaScript and SQL online test assesses candidates' knowledge of programming in the JavaScript language as well as their ability to use SQL.

It's an ideal test for pre-employment screening. A good JavaScript developer needs to not only solve problems using JavaScript but also write and analyze SQL queries used for communication with the database.

This online test requires candidates to solve coding problems in JavaScript and to write SQL queries that extract, combine, and manipulate data.

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Free Sample Questions for JavaScript and SQL Test

Our sample questions are free for companies to use on a trial plan. See more about our premium questions for paid plans below.

Students

3min
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Easy  
  -  
CODE

SQL Aggregation Select Public

Given the following data definition, write a query that returns the number of students whose first name is John. String comparisons should be case sensitive.

TABLE students
   id INTEGER PRIMARY KEY,
   firstName VARCHAR(30) NOT NULL,
   lastName VARCHAR(30) NOT NULL

Enrollment

5min
  -  
Easy  
  -  
CODE

SQL Conditions Update Public

A table containing the students enrolled in a yearly course has incorrect data in records with ids between 20 and 100 (inclusive).

TABLE enrollments
  id INTEGER NOT NULL PRIMARY KEY
  year INTEGER NOT NULL
  studentId INTEGER NOT NULL

Write a query that updates the field 'year' of every faulty record to 2015.

Pets

5min
  -  
Easy  
  -  
CODE

SQL Select Union Public

Information about pets is kept in two separate tables:

TABLE dogs
  id INTEGER NOT NULL PRIMARY KEY,
  name VARCHAR(50) NOT NULL

TABLE cats
  id INTEGER NOT NULL PRIMARY KEY,
  name VARCHAR(50) NOT NULL

Write a query that select all distinct pet names.

See the example case for more details.

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Premium Questions for JavaScript and SQL Test

TestDome offers a premium questions library with 1000+ unique, hand-crafted questions whose answers can’t be found online. If you spot an answer somewhere online, we’ll give you a refund.

Covered Skills

Testing of these skills is covered in this pre-built test because they’re closely related. On our paid plan, you can easily create your own custom multi-skill tests.

SQL Conditions Views Subqueries Update Constraints Create table Database schema Select Create index Performance tuning Alter table Aggregation Ordering Bug fixing Left join Indexes Union Group by Insert Joins Delete SQL CASE Right join Database normalization CTE
Recommended Job Roles

These are the job roles that we recommend for the JavaScript and SQL online test.

SQL Developer

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