is mysql deleted from IT 402?(class 10)

yo is it deleted? i cant find mysql in the cbse syllabus, + teacher said its deleted but wanna make sure cuz it used to be pakka question.

+ where to study it 402 from? i cant find any ncert textbook, and arihant has soo many steps and mysql is included in the new guide also. anyone have a link for the employability skill textbook too? and should we study all the steps, cuz i found 1 or 2 questions in sample paper asking steps ahh