Performance Considerations:Optimizing PL/SQL code to improve execution time, minimize resource consumption, and avoid mistakes such as excessive context switching between SQL and PL/SQL. To help, I am providing a guide on PL/SQL interview questions. I will begin with the fundamental concepts and m...
SQL Server offers a range of features, including data storage, transaction processing, and advanced analytics. Additionally, SQL Server supports integration with various data sources and tools, comprehensive BI and reporting services, and built-in support for machine learning and data analysis through R...
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Intermediate dbt Interview Questions Now that we've covered basic dbt questions, here are some intermediate-level dbt questions. These focus on specific technical aspects and concepts. What are sources in dbt? In dbt, sources are the raw data tables. We don't directly write SQL queries on...
Top 20 PL/SQL Interview Questions and Answers in 2025 Prepare for PL/SQL interviews with key topics like functions, triggers, dynamic SQL, error handling, best practices, and real-world scenario-based questions. Allan Ouko 10 min blog Top 30 Machine Learning Interview Questions For 2025 Prepare...
Ace your interview with this comprehensive guide to data engineer interview questions, from HR screening to technical evaluations, including Python and SQL.
Basic Spark Interview Questions These questions cover some of the fundamentals of Spark and are appropriate for those who have only basic experience using it. If you need a refresher, our Introduction to Spark SQL in Python course is the ideal place to start. 1. What is Apache Spark, and...
This comprehensive guide provides a curated list of SQL Server interview questions and answers, covering topics from basic concepts to advanced techniques, to help you prepare for your next data-related interview. Kevin Babitz 14 Min. Mehr anzeigen ...
Code-Based Data Warehouse Interview Questions (SQL) An interview for a data role will almost always include a SQL stage. It was certainly part of all the interviews I conducted because, let’s be honest, data and analytics engineers need to have an advanced understanding of it. These SQL q...
Advanced and Scenario-Based Questions Beyond foundational knowledge and SQL proficiency, real-world problem-solving skills are crucial for working with BigQuery at scale. Advanced interview questions often focus on handling large datasets, optimizing performance, managing data pipelines, and troubleshooting ...