This Python and SQL Online Test
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About the test

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

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

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

Sample public questions

A university's Office of Admission keeps track of student majors. Each student can have a single major. Below is an example of how their system stores students, majors, and how it manipulates them:

students = [("Allen Anderson", "Computer Science"),
            ("Edgar Einstein", "Engineering"),
            ("Farrah Finn", "Fine Arts")]
     
def add_new_student(students, name, major):
    students.append((name, major))

def update_student(students, index, name, major):
    students[index] = (name, major)

def find_students_by_name(students, name):
    return [student for student in students if name in student[0]]

def get_all_majors(students):
    return [student[1] for student in students]

What can be concluded from the code snippet above?

Python
Lists
Tuples
Easy
3 min
mca
Public

Given the following data definition, write a query that returns the number of students whose first name is John.

TABLE students
   id INTEGER PRIMARY KEY,
   firstName VARCHAR(30) NOT NULL,
   lastName VARCHAR(30) NOT NULL
SQL
Aggregation
Select
Easy
3 min
code
Public

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83 more premium Python and SQL questions

  Document Store,   Is Alpha,   Shipping,   Log Patch,   Category Tree,   Paragraph,   Products,   Username,   Language Teacher,   Reward Points,   Greeter,   Tuple Slice,   Medical Record,   Numbers to Text,   Hobbies,   Procedural Generator,   Kilometer Converter,   Crop Ratio,   Log Parser,   Cargo Ship,   String Occurrence,   Random Playlist,   File Format,   Book Authors,   Count Hobbies,   Chain Link,   XML Navigation,   Special Actions,   Roads,   Authors,   Autocomplete,   Ban Users,   Bank Branches,   Cheapest Product,   Countries,   Developers,   Hospital Patients,   Index Performance,   Menu Items,   Movies,   Projects,   Rectangles,   Restaurant Menu,   Retirees,   SMS Messages,   Poll,   Users and Accounts,   Matching Clothes,   Agents,   Sales,   Employee Manager,   Auto Show,   Delete Orders,   Welfare Organization,   Tasks,   Manager Sales,   Student Rankings,   Student Activities,   Youngest Child,   Movies Live,   Department Report,   Ingredients,   Average Salary,   Movie Genres,   Segment,   River Discharge,   ATM Locations,   Ceramic Store,   Action Stack,   Read Write Execute,   Read First Line,   Transactions,   Veterinarian,   Book Sale,   Unique Numbers,   Moving Total,   Max Sum,   Internal Nodes,   Paper Strip,   Friend,   Flight Connections,   Merge Stock Index,   Date Transform.

Skills and topics tested

  • Python
  • Bug Fixing
  • Language
  • List Comprehension
  • Strings
  • Arithmetic
  • Monkey Patching
  • Dictionary
  • Exceptions
  • Regex
  • JSON
  • Serialization
  • Sorting
  • Inheritance
  • OOP
  • Tuples
  • Named Tuple
  • Iteration
  • Lists
  • Random
  • Method Overriding
  • Integer Division
  • XML
  • Stream
  • Closures
  • Multithreading
  • Performance Tuning
  • Conditional Statements
  • Linked List
  • Dynamic Objects
  • SQL
  • Conditions
  • Views
  • Select
  • Create Index
  • Database Schema
  • Alter Table
  • Constraints
  • Create Table
  • Aggregation
  • Subqueries
  • Ordering
  • Indexes
  • Group by
  • Update
  • Insert
  • Joins
  • Left Join
  • Right Join
  • Delete
  • SQL CASE
  • Union
  • CTE
  • Database Normalization
  • Stack
  • Algorithmic Thinking
  • Queue
  • Set
  • Tree
  • Graphs

For job roles

  • Back-End Developer
  • Python Developer
  • SQL Developer
  • Web Developer

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