Скачать или смотреть 10 SQL Queries Every Developer Must Know(With Examples)

🚀 Want to level up your SQL skills? In this video, I’ll walk you through 10 essential SQL queries that every developer, analyst, and data enthusiast should know.
We’ll cover everything from finding top records, handling duplicates, window functions, joins, subqueries, CASE statements, NULL handling, date functions, grouping, and CTEs – all with practical examples.

✨ Whether you’re a beginner or looking to refresh your knowledge, these queries will help you write cleaner, smarter, and more efficient SQL.

00:00 – Introduction
00:30 – Top N Records (Highest Selling Products)
01:20 – Find Duplicate Records
02:05 – Window Functions (Running Total)
03:10 – Joins (Customer Orders)
04:00 – Subqueries (Above Average Prices)
04:45 – CASE for Categorization
05:30 – Handle NULLs (COALESCE)
06:10 – Date Functions (Last 30 Days Orders)
06:55 – Group By with Multiple Columns
07:40 – CTEs (Top Customers)
08:30 – Wrap Up
#sql #Database #learnsql #sqlqueries #programmingtips #dataanalytics
#sqlqueries #learnsql #sqltutorial #database #databasemanagement #databasedesign #sqlserver #mysql #postgresqltutorial #oraclesql #nosql #data #dataanalytics #datascience #bigdata #DataEngineer #DataVisualization #ETL #BusinessIntelligence #dataanalyst