Mastering SQL - PostgreSQL: Advanced SQL - Analytic Functions - Filtering

Описание: Learn how to effectively use analytic functions in PostgreSQL to filter and rank data! In this video, we explore how to apply filtering on derived values using analytic functions. Understand how to use subqueries to filter on top of the results produced by analytic functions and gain insights on best practices for working with SQL queries in PostgreSQL. We cover essential concepts like query execution order, using HAVING, ORDER BY, and filtering on analytic function results.

What this video covers:
✔️ Applying analytic functions to rank data (e.g., top 5 revenue-generating products)
✔️ Using HAVING to filter aggregated results
✔️ Understanding SQL query execution order
✔️ How to use subqueries for filtering analytic function results
✔️ Handling errors when filtering analytic function outputs directly

💡 Master filtering with analytic functions and subqueries to efficiently analyze and rank your data!

Timestamps
0:00 - Introduction to Analytic Functions in SQL
0:21 - Writing SQL Queries with SELECT, FROM, WHERE, and GROUP BY
2:00 - Filtering Aggregated Results Using HAVING
4:25 - Challenges with Filtering Analytic Function Results
5:01 - How to Use Subqueries for Filtering Analytic Function Data
6:12 - Example: Filtering Top 5 Daily Products by Revenue
9:35 - Best Practices for Using Analytic Functions and Subqueries in PostgreSQL

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#sql #database #postgresql #predefinedfunctions #sqlanalyticsfunctions