Day: April 9, 2024

Introduction 介绍 With all that you’ve learned, your SQL queries are getting pretty long, which can make them hard understand (and debug). 根据您所学的知识，您的 SQL 查询变得相当长，这可能使它们难以理解（和调试）。 You are about to learn how to use AS and WITH to tidy up your queries and make them easier to read. 您将学习如何使用 AS 和 WITH 来整理您的查询并使它们更易于阅读。 Along the way, […]

This notebook is an exercise in the SQL course. You can reference the tutorial at this link. Introduction 介绍 You’ve built up your SQL skills enough that the remaining hands-on exercises will use different datasets than you see in the explanations. If you need to get to know a new dataset, you can run a […]