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CTE vs Subquery in SQL — which one should you actually use? In this video, we'll break down the difference between CTEs ...

What are severity, error_if, and warn_if in dbt? In this video, we explain how dbt test severity works and how error_if and warn_if ...

What is a DBT Incremental Model? Learn how incremental models work in dbt and why they are used in data engineering ...

What happens when a run query returns None? In this video, we explain why a query execution may return None, what it means, ...

Why does a dbt full refresh sometimes take hours to complete? In this video, we explain the common reasons why dbt full refresh ...

What is DBT Store Failures? Learn how dbt can store test failure records and how this feature can help with debugging and ...

SQL GROUP BY + COUNT Explained | Find Employees in Each Department | SQL Practical Questions #8 In this SQL practical ...

What is DBT Unit Testing? Learn how unit tests work in dbt and how they help validate SQL logic and model behavior before ...

Why do dbt singular tests sometimes time out? In this video, we explain the common reasons behind dbt singular test timeouts, ...

... followed by important Data Science Interview Questions to help you prepare for technical interviews and career opportunities.

DBT Incremental Strategy explained for Data Engineering interviews. In this video, we discuss DBT Incremental Models and how ...

What happens when a DELETE statement fires during a nightly dbt job? In this video, we discuss how DELETE operations can ...