SQL data engineer interview questions The SQL coding stage is a significant part of the data engineering hiring process. Practicing various simple and complex scripts can help you prepare. Interviewers may ask you to write queries for data analytics, common table expressions, ranking, adding subtotal...
Now that there are a few records in each table, you can use this data to answer a few more data engineer interview questions. Remove ads Q2: SQL Aggregation FunctionsAggregation functions are those that perform a mathematical operation on a result set. Some examples include AVG, COUNT, MIN,...
CLICK HERE TO GET INTERVIEW QUESTIONS FOR TCS… Following are some important Interview Questions for SQL : 1.What is SQL?Where SQL is used? Answer: SQL is Structured Query Language, which is a computer language for storing, manipulating and retrieving data stored in relational database.SQL can...
SQL Interview Questions SQL is the mother language for data professionals. I was asked about SQL even in a Deep Learning Engineering job interview. To train a large model, you need to learn to ingest data from multiple databases. SQL is also used for data analytics. Before you appear for a...
Data Analyst SQL Interview Questions Image by Author Question #1: Days At Number One (PostgreSQL) “Find the number of days a US track has stayed in the 1st position for both the US and worldwide rankings. Output the track name and the number of days in the 1st position. Order your out...
The hard part of these SQL interview questions is that they are abstract. The tasks say to “imagine the data sets” and show only a few lines of them. When you get an exercise like that, it helps a lot if you have seen similar datasets and solved similar problems before. I hope sol...
The best place to learn data engineering. Built and maintained by the data engineering community. datasqldatabaseetldata-engineeringdata-pipelinesdata-modelingdata-engineer UpdatedOct 14, 2024 CSS 企业级低代码快速开发平台,包含页面可视化配置、自定义表单、自定义报表、权限管理脚手架应用、前后端代码自动生成...
Data Science Interview Master the wide range of data science interview questions. Data Analytics Interview In this course we will learn how to tackle data analytics problems Data Engineering Interview Learn how to tackle data engineering job interviews. ...
DataLemur-SQL-Challenges:This directory contains the solution PostgreSQL scripts for the challenges mentioned in the Solution Scripts table.In the below table, the columns indicate the following attributes related to the challenge:ID : Identity column for individual challenge Challenge : Link to the ...
Using your Microsoft Azure subscription, I’ll present examples of solving machine learning (ML) problems with Spark, taking a small step from software engineering into the data science world. But before I dive into data analysis and ML, it’s important to say a few words ab...