This is a lecture that I would recommend to students who are new to SQL or are in the introductory stage.

In particular, it was very helpful because it explained difficult aggregate functions and JOINs with pictures and examples for those who are new to SQL.

jiwongoh9863

You will be able to extract the data you want directly without the help of a developer. We will provide everything you need for analysis, from simple queries to joins. Start learning SQL with a direct lecture from the author of the book <Planner's SQL>.

breachers

인프런 10주년! 사랑주간 전체 할인

[Concept Class] Learn and Use SQL Queries Right Away

입문

초급

중급이상

Orientation

Basic SQL Usage (Query)

Intermediate SQL Usage (Grouping & Functions)

Intermediate to Advanced SQL Usage (Join)

While giving a lecture