You explained very well how to write SQL statements when working with databases and why they should be written that way, with appropriate examples that made it easy to understand. Please continue to offer many good courses in the future.

ericserra4918

Not only developers, but also planners and data analysts learn databases step-by-step, starting from SQL basics.

Kim Younghan's Practical Database Introduction - SQL First Steps for All IT Professionals (Step by Step from SQL)

Thank you so much for listening so diligently, ericserra! Keep fighting until the end!!!

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DBMS/RDBMS

mysql

sqld

SQLD

입문

초급

중급이상

MySQL

SQL 개발자 자격시험

Course Introduction and Class Materials

Database Introduction

Database startup

SQL - Data Management

SQL - Query and Sorting

SQL - Data Processing

SQL - Aggregation and Grouping