I feel like I learned a lot about SQL very easily and quickly, from the introduction to the application. Thank you. If I'm aiming to become a backend developer, how should I study more about SQL?

samgangjumak

SQL data analysis! We will teach you how to solve practical problems that are applicable in the field, quickly and easily!

hongpark

[The concept is easy~, the practice is intense] SQL data analysis, utilization!

Practice designing tables by referring to various example diagrams (Google it). I recommend making them as small as possible but with a variety of options.

입문

초급

중급이상

포스트그레SQL

PostgreSQL

데이터베이스 관리 시스템

DBMS/RDBMS

Orientation

One-to-Many Relationship (feat. Instagram)

One-on-One, Many-to-Many Relationships (feat. Instagram)

Data Relationships Practice Problems (feat. Cafe Sales)

Table Join (feat. Instagram)

Table Join Practice Problems (feat. Market Kurly)

Grouping and Aggregation (feat. Market Kurly)

Subquery (feat. Cafe Sales)

Grouping and Subquery Practice Problems (feat. University Grades)

Closing