What is In clause

[Ranga Reddy shreya]

What is In clause in sql
difference between exist cluase and IN clause

[Richard Green]

Get the list of students that have secured good grades
SELECT s.name from student s WHERE s.grade IN ('A','B','C')

Get the list of students that have secured good grades and are not in the badstudents list
SELECT s.name from student s WHERE NOT EXISTS ( SELECT 1 FROM badstudents b where b.studentid = s.studentid) AND s.grade IN ('A','B','C')