Given a purchase table(user, purchase_time, amount_of_money, level1_category, level2_category), write a sql query to find the customer purchase in continue 7 days and with the total money greater than 500
Data Engineer Interview Questions
Data Engineer Interview Questions
Le data engineer est un professionnel de l’informatique présent dans presque tous les secteurs. Il/Elle suit l’évolution et les tendances des données pour orienter les stratégies futures de l’entreprise. Une part essentielle de son travail consiste à transformer des données brutes en données exploitables en créant des pipelines et des systèmes de données.
Questions d'entretien d'embauche fréquentes pour un data engineer (H/F) et comment y répondre
Question 1 : Décrivez en détail votre niveau d’expertise en langage de programmation.
Question 2 : Expliquez selon vous en quoi consiste le data engineering.
Question 3 : Quelle est votre expérience en gestion de données dans le cloud et avec Apache Hadoop ?
20,186 data engineer interview questions shared by candidates
Python: Count words, Count substring, Separate list of lists, Random number generator.
If you take 3 subsequent number (n, n+1, n+2) and know, that n and n+2 are prime numbers, can you proove, that n+1 is always dividable by 6?
Questions on the video call were technical, but basic. 1. What are ACID properties 2. What are indexes 3. What is the difference between Stored Procedures, Functions and Triggers 4. BASE properties 5. JVM, JRE, JDK and JIT 6. What are common table expressions 7. Difference between throw and throws in java 8. What is the difference between Clustered and non clustered index
Are you good and praticale in fixing stuff and object ?
# Q1: Write a function to intersect two *sorted* lists (find common elements) # Write a method taking two lists as input, and returning a new list # You can assume you have a reasonable array/list class available (ArrayList, vector, python list, etc) # Ex: # l1 = [1,2,3,4,5] # l2 = [1,5,7,11,100] # result = [1,5]
Implement a library function which takes a collection of integers (Collection<Integer>) computes its sum and returns the result. The implementation must establish preconditions which ensure lack of runtime error(s). Implement the above function using recursion only.
Explain how to get information from Excel over to the database
sql and python are practically the same as the ones you get as practice questions in the meta career site.
gave few columns, asked to design a model and based on the model 3/4 sql questions were asked
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