Boost your SQL interview readiness with these 35 carefully selected SQL Interview Questions and Answers. Includes real-world ...

PivotTables are still easier to create for anyone who prefers not to use formulas, and they excel at automatically grouping dates or handling large external datasets from sources like SQL Server or ...

Access the query editor: You begin in Dune’s query editor, a dedicated environment for writing and executing code. Click “New ...

Discover the best cloud ETL tools for data engineers in 2025. Compare features, pricing, and use cases as we explore the most effective data integration solutions for modern organizations with ...

In a detailed engineering post, Yelp shared how it built a scalable and cost-efficient pipeline for processing Amazon S3 ...

So began several long ChatGPT threads that gave me detailed instructions on how to sign up as a developer with Companies House and get an API key, and then create Power Queries. I can then take that ...

Abstract: Aggregation functions such as COUNT, SUM, AVG, MAX, and MIN are basic tools for summarizing data in SQL. However, their behavior can be affected by several factors such as the occurrence of ...

Delivering high-fidelity investment data across th... Financial data aggregation is foundational to modern wealth management. It enables advisors to deliver holistic advice by collecting, normalizing, ...

WITH cte AS ( SELECT *, sum(invoiced) OVER (PARTITION BY ID ORDER BY Date desc) grp FROM mytable ORDER BY ID, Date ) SELECT ID, MAX(date) AS Date, MAX(Invoiced) AS ...

Now we need to group IDs into multiple consecutive intervals, sum up the values within each group, and arrange the calculation results in order of intervals. The intervals are in the form of a ...

Some people may have received a letter in recent weeks, offering the option to opt out of energy provided by the company selected by the Northwest Ohio Aggregation Coalition. If you got one of these ...

Q. Could you explain how the AGGREGATE function works in Excel? A. AGGREGATE is possibly the most versatile function in Excel. Think of it as an advanced version of the SUBTOTAL function that offers ...