From the takes table, list every enrolment whose grade is one of A, A-, or B+.
takes
grade
A
A-
B+
Return these columns: ID, course_id, sec_id, semester, year, grade.
ID
course_id
sec_id
semester
year
−+Fitclassroombuildingvarchar(15)room_numbervarchar(7)capacitynumeric(4,0)departmentdept_namevarchar(20)buildingvarchar(15)budgetnumeric(12,2)time_slottime_slot_idvarchar(4)dayvarchar(1)start_timetimeend_timetimecoursecourse_idvarchar(8)titlevarchar(50)dept_namevarchar(20)creditsnumeric(2,0)instructorIDvarchar(5)namevarchar(20)dept_namevarchar(20)salarynumeric(8,2)studentIDvarchar(5)namevarchar(20)dept_namevarchar(20)tot_crednumeric(3,0)sectioncourse_idvarchar(8)sec_idvarchar(8)semestervarchar(6)yearnumeric(4,0)buildingvarchar(15)room_numbervarchar(7)time_slot_idvarchar(4)advisors_idvarchar(5)i_idvarchar(5)prereqcourse_idvarchar(8)prereq_idvarchar(8)teachesIDvarchar(5)course_idvarchar(8)sec_idvarchar(8)semestervarchar(6)yearnumeric(4,0)takesIDvarchar(5)course_idvarchar(8)sec_idvarchar(8)semestervarchar(6)yearnumeric(4,0)gradevarchar(2)primary keyforeign keyarrow points to the referenced columndrag to pan