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New drops are live! Grab your favorite tees today at https://oridada.com/ Free SQL Course – Learn What Companies Want ...

Here are 20 SQL interview questions that companies actually ask—covering joins, subqueries, indexing, performance, and more.

In this video, we delve into the powerful SQL Server function LAST_VALUE and explore its IGNORE NULLS option.

Master essential SQL date and time functions for effective data analysis across different time frames. Learn powerful time ...

Check out Supabase: https://supabase.plug.dev/qnxeTMY ❤️ Get 40% OFF CodeCrafters: ...

In this video, we delve into the powerful world of Spark window functions, focusing on how to leverage them effectively without ...

In this video, we dive into the powerful world of SQL queries, focusing on a common yet essential task: summing the previous row ...

Andy Pavlo (https://www.cs.cmu.edu/~pavlo/) Slides: https://15445.courses.cs.cmu.edu/fall2025/slides/02-modernsql.pdf Notes: ...

How Do You Pass Data Science Interview for SQL? As Data Scientist, being proficient in SQL is definitely mandatory especially for ...

In this video, we dive into the powerful capabilities of Spark's window functions and how they can be used to filter DataFrames ...

Moving average using window function in MySQL Helpful? Please use the *Thanks* button above! Or, thank me via Patreon: ...

In this video, we delve into the powerful features of Apache Spark 1.6, focusing on the use of `collect_set` and `collect_list` ...

Replacing window function OVER() with WINDOW clause reference yields different results ✧ I really hope you found a helpful ...

CMU Database Group - SQL or Death? Seminar Series (2025) Speaker: Jeff Shute ...

Today's Topic: Pyspark window function with condition Thanks for taking the time to learn more. In this video I'll go through your ...

In this video, you will learn about the SQL Partition by clause and how to use it to partition your result set into smaller set.

PostgreSQL optimize query performance that contains Window function with CTE Helpful? Please use the *Thanks* button above!

... GROUP BY, HAVING Subqueries & Common Table Expressions (CTEs) Window functions: ROW_NUMBER(), RANK(), LEAD(), ...

Task 3: Window functions — LAG and LEAD (PARTITION BY user_id, ORDER BY payment_date), previous/next payment and ...

Follow Gunel's thought process as he works through joins, Common Table Expressions (CTEs), window functions like ...