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About the test:

The Python SQL Online Test uses scenario-based MCQs to evaluate candidates on their understanding of SQL and how to use it with Python. The test assesses candidates on their knowledge of SQL syntax and usage, including SQL commands for creating, querying, and modifying relational databases and tables. It also evaluates their familiarity with Python libraries for working with SQL databases, such as SQLAlchemy, pyodbc, and sqlite3, and their ability to write Python code for data manipulation, transformation, and analysis using SQL.

Covered skills:

  • Cordes et nombres
  • Listes, dictionnaires, tuples et ensembles
  • Formatage des chaînes
  • Collections
See all covered skills

9 reasons why
9 reasons why

Adaface Python & SQL Online Test is the most accurate way to shortlist candidates



Reason #1

Tests for on-the-job skills

The Python & SQL 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.

Non-googleable questions & proctoring features enable you to be comfortable with conducting assessments online. The Python & SQL Online Test is ideal for helping recruiters identify which candidates have the skills to do well on the job.

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.

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.

Ce ne sont qu'un petit échantillon de notre bibliothèque de plus de 10 000 questions. Les questions réelles à ce sujet Python & SQL Test ne sera pas googleable.

🧐 Question

Medium

ZeroDivisionError and IndexError
Exceptions
Solve
What will the following Python code output?
 image

Medium

Session
File Handling
Dictionary
Solve
 image
The function high_sess should compute the highest number of events per session of each user in the database by reading a comma-separated value input file of session data. The result should be returned from the function as a dictionary. The first column of each line in the input file is expected to contain the user’s name represented as a string. The second column is expected to contain an integer representing the events in a session. Here is an example input file:
Tony,10
Stark,12
Black,25
Your program should ignore a non-conforming line like this one.
Stark,3
Widow,6
Widow,14
The resulting return value for this file should be the following dictionary: { 'Stark':12, 'Black':25, 'Tony':10, 'Widow':14 }
What should replace the CODE TO FILL line to complete the function?
 image

Medium

Max Code
Arrays
Solve
Below are code lines to create a Python function. Ignoring indentation, what lines should be used and in what order for the following function to be complete:
 image

Medium

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

Medium

Select & IN
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

Hard

With, AVG & SUM
Solve
Consider the following SQL table:
 image
How many tuples does the following query return?
 image

Easy

Registration Queue
Logic
Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.
For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.
⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

Medium

Longest Road
logic
hashmaps
Solve
A startup company E-Motors is building driverless automated cars. The car contains a sensor that checks the road quality for the next N meters to decide the optimal speed at which the cars should move. We are given recorded data by the sensor in the form of an array, where each element of the array is the rating given to 1 meter of the road in sequence. 

The rating given by the sensor is from 1 to 100, where 100 represents the road with the best condition, and any rating above 60 is optimal. Find the longest stretch of road in meters that is categorized as optimal by the sensor.

The input is an array of "strings" which needs to be converted from string to integer/number inside the function.

Medium

Visitors Count
Strings
Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 
Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 
⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.
🧐 Question🔧 Skill

Medium

ZeroDivisionError and IndexError
Exceptions
2 mins
Python
Solve

Medium

Session
File Handling
Dictionary
2 mins
Python
Solve

Medium

Max Code
Arrays
2 mins
Python
Solve

Medium

Multi Select
2 mins
SQL
Solve

Medium

Select & IN
3 mins
SQL
Solve

Hard

With, AVG & SUM
2 mins
SQL
Solve

Easy

Registration Queue
Logic
30 mins
Coding
Solve

Medium

Longest Road
logic
hashmaps
25 mins
Coding
Solve

Medium

Visitors Count
Strings
30 mins
Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
ZeroDivisionError and IndexError
Exceptions
Python
Medium2 mins
Solve
Session
File Handling
Dictionary
Python
Medium2 mins
Solve
Max Code
Arrays
Python
Medium2 mins
Solve
Multi Select
SQL
Medium2 mins
Solve
Select & IN
SQL
Medium3 mins
Solve
With, AVG & SUM
SQL
Hard2 mins
Solve
Registration Queue
Logic
Coding
Easy30 minsSolve
Longest Road
logic
hashmaps
Coding
Medium25 minsSolve
Visitors Count
Strings
Coding
Medium30 minsSolve
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

Avec Adaface, nous avons pu optimiser notre processus de dépistage initial de plus de 75%, libérant un temps précieux pour les gestionnaires d'embauche et notre équipe d'acquisition de talents!


Brandon Lee, Chef des gens, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Python & SQL 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.

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Python & SQL 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 & comparative results

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


What topics are covered in the Python & SQL Online Test?

Cordes et nombres
Formatage des chaînes
Listes, dictionnaires, tuples et ensembles
Collections
Fonctions et lambdas
Décorateurs
Portée
args / kwargs et valeurs de paramètre par défaut
Le concept de mutabilité
Fonctions intégrées
Débogage et gestion des erreurs
Type de pointe
Modules et installation de bibliothèques
Programmation orientée objet
Programmation fonctionnelle
Lambdas
Décorateurs
Générateurs
Composition et héritage
Fichier d'E / S
Interactions de base de données
Tests unitaires
Regex (expressions régulières)
Grattage Web
Algorithmes et structures de données
Programmation asynchrone
Fermetures
Le modèle relationnel
Bases SQL
Fonctions SQL
Langue de modification des données
Langue de requête de données
Bourdonner
Filtrage SQL / Instruction
Sous-questionnaires
Index
3 logique valorisée
SQL rejoint
Fonctions de fenêtre
Filtrage de date et horodatage
Fonctions agrégées
Avantage de l'opérateur
COMMANDÉ PAR
PAR GROUPE
Design de haut en bas
Conception ascendante
Diagramme entité-relation
Normalisation
Types de base de données
SELECT multi-table
Gestion de l'autorisation
Stratégies de sauvegarde
Transactions
Types de données
Vues
Fragment
Réplication
Sauvegardes
Échelle verticale + horizontale
Bases de données distribuées vs centralisées
Sécurité de la base de données
Injections SQL
Contrôle d'accès
Fondamentaux informatiques
Codage de lettres
Codage numérique
Substitution
Puzzles de codage
Raisonnement non verbal
Concepts SQL
Analyse commerciale
Décodage de codage
Langages de programmation
L'architecture des ordinateurs
Concepts de base SGBD
Principes solides
Systèmes d'automatisation
La prise de décision
Raisonnement non verbal
Approche de résolution de problèmes
Singapore government logo

Les responsables du recrutement ont estimé que grâce aux questions techniques qu'ils posaient lors des entretiens du panel, ils ont pu dire quels candidats avaient de meilleurs scores et se différenciaient de ceux qui ne marquaient pas aussi bien. Ils sont très satisfait avec la qualité des candidats présélectionnés avec le dépistage de l'ADAFACE.


85%
réduction du temps de dépistage

FAQ

Puis-je combiner plusieurs compétences en une seule évaluation personnalisée?

Oui absolument. Les évaluations personnalisées sont configurées en fonction de votre description de poste et comprendront des questions sur toutes les compétences indispensables que vous spécifiez.

Avez-vous en place des fonctionnalités anti-chétion ou de proctorisation?

Nous avons les fonctionnalités anti-modification suivantes en place:

  • Questions non googléables
  • IP Proctoring
  • Proctoring Web
  • Proctoring webcam
  • Détection du plagiat
  • navigateur sécurisé

En savoir plus sur les fonctionnalités de Proctoring.

Comment interpréter les résultats des tests?

La principale chose à garder à l'esprit est qu'une évaluation est un outil d'élimination, pas un outil de sélection. Une évaluation des compétences est optimisée pour vous aider à éliminer les candidats qui ne sont pas techniquement qualifiés pour le rôle, il n'est pas optimisé pour vous aider à trouver le meilleur candidat pour le rôle. Ainsi, la façon idéale d'utiliser une évaluation consiste à décider d'un score de seuil (généralement 55%, nous vous aidons à bencher) et à inviter tous les candidats qui marquent au-dessus du seuil pour les prochains cycles d'entrevue.

Pour quel niveau d'expérience puis-je utiliser ce test?

Chaque évaluation ADAFACE est personnalisée à votre description de poste / Persona de candidats idéaux (nos experts en la matière choisiront les bonnes questions pour votre évaluation de notre bibliothèque de 10000+ questions). Cette évaluation peut être personnalisée pour tout niveau d'expérience.

Chaque candidat reçoit-il les mêmes questions?

Oui, cela vous permet de comparer les candidats. Les options pour les questions du MCQ et l'ordre des questions sont randomisées. Nous avons Anti-Cheating / Proctoring en place. Dans notre plan d'entreprise, nous avons également la possibilité de créer plusieurs versions de la même évaluation avec des questions de niveaux de difficulté similaires.

Je suis candidat. Puis-je essayer un test de pratique?

Non. Malheureusement, nous ne soutenons pas les tests de pratique pour le moment. Cependant, vous pouvez utiliser nos exemples de questions pour la pratique.

Quel est le coût de l'utilisation de ce test?

Vous pouvez consulter nos plans de prix.

Puis-je obtenir un essai gratuit?

Oui, vous pouvez vous inscrire gratuitement et prévisualiser ce test.

Je viens de déménager dans un plan payant. Comment puis-je demander une évaluation personnalisée?

Voici un guide rapide sur Comment demander une évaluation personnalisée sur Adaface.

customers across world
Join 1200+ companies in 75+ countries.
Essayez l'outil d'évaluation des compétences le plus candidat aujourd'hui.
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40 min tests.
No trick questions.
Accurate shortlisting.
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