Complex SQL Breakdown (CTEs, Subquery, and More)

Опубликовано: 24 Май 2023
на канале: Database Star

6,170

190

📝 Get my free SQL Cheat Sheets: https://databasestar.mykajabi.com/lpk...
🎓 Master SQL Fundamentals: https://databasestar.mykajabi.com/sql...

At some point in your SQL journey, you'll come across SQL queries that are more complicated - queries that are long, or contain things like Common Table Expressions, subqueries, and other features.

In this video, we'll start with a complex SQL query, and take small steps to understand what it is doing. We'll add comments along the way, and at the end we'll be able to understand what the whole query is doing.

⏱ TIMESTAMPS:
00:00 - Our complex query
01:37 - Formatting the query
03:22 - Base tables
05:58 - First subquery
08:24 - First CTE
09:53 - Subquery in second CTE
12:28 - The next subquery
15:04 - Second CTE
17:18 - Main query

🔗 VIDEO LINKS:
The query we start with in this video: https://github.com/bbrumm/databasesta...
Sample data for the query: https://github.com/bbrumm/databasesta...

На этой странице сайта вы можете посмотреть видео онлайн Complex SQL Breakdown (CTEs, Subquery, and More) длительностью часов минут секунд в хорошем качестве, которое загрузил пользователь Database Star 24 Май 2023, поделитесь ссылкой с друзьями и знакомыми, на youtube это видео уже посмотрели 6,170 раз и оно понравилось 190 зрителям. Приятного просмотра!

1,614