📝 Get my free SQL Cheat Sheets: [ Ссылка ]
🎓 Learn and become confident in SQL: [ Ссылка ]
SQL CTEs, or Common Table Expressions, are a helpful feature in SQL. They can help you clean up a query and make it easier to read, and are available in many vendors including Oracle, SQL Server, MySQL, and Postgres.
In this video, you’ll learn what a CTE is, why you would want to use one, see an example of transforming a query to use a CTE, and see the benefits of a CTE.
Timestamps:
00:00 What is a CTE?
01:13 Our sample data
01:51 Create a CTE
04:38 Benefits of using CTEs
06:27 CTE vs Temp Table
Links:
Script on GitHub for sample data and SQL query: [ Ссылка ]
