List the id of students who attended some courses?
CREATE TABLE student_course_attendance (student_id VARCHAR)
SELECT student_id FROM student_course_attendance
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE student_course_attendance (student_id VARCHAR) Question: List the id of students who attended some courses? [/INST] SELECT student_id FROM student_course_attendance </s>