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In this video, I take you through a variety of use cases for window functions, showing how you can solve common (and sometimes ...

In this video (part 1 of a new series), I explain what a window function is, as well as the components of window functions.

In this video, I walk through four categories of window function, plus a somewhat-related type of function in SQL Server.

In this Databricks video, I covered how to use the Databricks SQL QUALIFY with window functions in SELECT list and in QUALIFY ...

This SQL Full Course is a comprehensive guide to learning SQL, covering both beginner and advanced topics. In this 2-hour ...

All JomaClass videos from 2020 are now free to watch. If you enjoy please consider donating here: https://support.joma.io/ This ...

In this video, I show you various techniques you can use to make window functions faster, including proper indexing and usage of ...

MENTORSHIP – Applications for the March 2026 cohort are now open! Apply here → https://theanalyticsaccelerator.com/ 2026 ...

In this step-by-step SQL tutorial, I'll guide you through writing 100 SQL queries based on real business scenarios to help you ...

In this step-by-step SQL tutorial, I'll guide you through writing 100 SQL queries based on real business scenarios to help you ...

In this video, I continue a dive into each category of window function, quickly reviewing the four categories of window function ...

In this video, I take you through some of the limitations of window functions in SQL Server, including the lack of intervals and ...

Get my SQL Timezone Cheat Sheet: https://databasestar.mykajabi.com/lpkj-sql-timezone-cheat-sheet?video=6v6Y7ntKt_U ...

Get started: https://cnfl.io/apache-flink-sql-module-1 | Apache Flink® SQL makes it easy to implement analytics that summarize ...

In this step-by-step SQL tutorial, I'll guide you through writing 100 SQL queries based on real business scenarios to help you ...

All JomaClass videos from 2020 are now free to watch. If you enjoy please consider donating here: https://support.joma.io/ This ...

Date functions in SQL are used to handle and manipulate date and time data. Common functions include `GETDATE()` or ...

In this step-by-step SQL tutorial, I'll guide you through writing 100 SQL queries based on real business scenarios to help you ...

String functions in SQL are used to manipulate and process text data in queries. Common functions include `CONCAT()` for ...

The `COUNT`, `SUM`, `AVG`, `MIN`, and `MAX` functions in SQL are aggregate functions used to perform calculations on a set of ...