Top Five Things to Know in Advanced SQL

سرفصل های دوره

In this course, Kendall Ruber shows you how to build on your existing knowledge of basic SQL commands by introducing advanced SQL concepts and providing hands-on exercises for you to apply these skills to common business problems. By the end of this course, students should understand the different use cases and limitations for various advanced functions in SQL, as well as be able to appropriately apply these functions to solve business problems. Learn and practice how to construct subqueries, CTEs (Common Table Expressions), and windows functions.

01 - Introduction

01 - The importance of SQL in a data-driven world

02 - Prerequisite knowledge

03 - Navigating the exercise files on GitHub

04 - Setting up Microsoft SQL Server

05 - Adding primary key constraints

02 - 1. Subqueries

01 - What is a subquery

02 - Syntax of a scalar subquery

03 - Syntax of a multiple-row subquery

04 - Uncorrelated subquery

05 - Correlated subquery

06 - Challenge Create a subquery

07 - Solution Create a subquery

03 - 2. Common Table Expressions (CTE)

01 - Syntax of CTEs

02 - Recursive CTEs

03 - Challenge Create a CTE

04 - Solution Create a CTE

05 - Difference between a CTE and a subquery

04 - 3. Windows Functions ROW NUMBER()

01 - Introduction to window functions

02 - Diving into ROW NUMBER()

03 - Challenge Calculate a ROW NUMBER

04 - Solution Calculate a ROW NUMBER

05 - 4. Windows Functions LAG() and LEAD()

01 - Use cases and syntax of LAG() and LEAD()

02 - Using LAG() and LEAD() in tandem

03 - Challenge Using LAG() and LEAD() to determine most recent order quantities

04 - Solution Using LAG() and LEAD() to determine most recent order quantities

06 - 5. Ranking Windows Functions

01 - Introduction to ranking window functions

02 - Demonstrating the distinction between RANK() and DENSE RANK()

03 - Challenge RANK() and DENSE RANK()

04 - Solution RANK() and DENSE RANK()

07 - Conclusion

01 - Wrap-up

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تولید کننده: LinkedIn Learning (Lynda)