A guide to the exam for nationally recognized SQL qualifications! Establish a comprehensive knowledge system related to SQL.

We would like to provide an opportunity to learn SQL, a language used in relational databases, in general. In particular, we wrote the execution examples in the ORACLE environment. The learning content is largely divided into 2 parts and a total of 11 lectures. After learning the entire content, you can cultivate the ability to perform tasks in a database along with the general knowledge of SQL, and you can also prepare for the nationally certified SQL developer qualification.

Completely prepare for one subject of the exam for nationally certified SQL developer qualification using the Korea Data Industry Promotion Agency's SQL qualification exam practice questions as a textbook.