Скачать или смотреть SQL Queries 3 - SubQuery

Delving into the essence of SQL subqueries, an indispensable technique in advanced database queries and data analysis. Beginning with the fundamentals, we explore the concept of subqueries, which are queries nested within another SQL query. We'll cover the use of single-row, multiple-row, correlated and scalar subqueries.

To get the initial table data, watch this video;    • SQL Queries 1 - Connect to Database with H...  
SQL Joins:    • SQL Queries 2 - Joins  

00:00 - Introduction
01:40 - Single-row Subquery
04:08 - Multiple-row Subquery
05:40 - Correlated Subquery
11:38 - Scalar Subquery

🔗 Download Hemlock: https://docs.hemlockdata.org/docs/Dow...
🔗 Subquery commands TXT file: https://github.com/theallegrarr/packa...
🔗 More SQL Learning: https://stackbay.org/modules/learn-sql

Our Social Media Channels:
  / stackbay_  
  / stackbay_  
  / discord