Complex SQL Breakdown (CTEs, Subquery, and More)
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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...
En esta página del sitio puede ver el video en línea Complex SQL Breakdown (CTEs, Subquery, and More) de Duración hora minuto segunda en buena calidad , que subió el usuario Database Star 24 mayo 2023, comparta el enlace con amigos y conocidos, en youtube este video ya ha sido visto 6,170 veces y le gustó 190 a los espectadores. Disfruta viendo!
