Update sample result

Import sections

Import classes

Import major courses

Import time usage: 4.74s

Import time usage: 4.88s

Test search course 1: 500

Test search course 1 time: 2.99s

Test search course 1 time: 3.49s

Test enroll course 1: 100

Test enroll course 1 time: 0.13s

Test drop enrolled course 1: 83

Test drop enrolled course 1: 75

Test drop enrolled course 1 time: 0.08s

Import student courses

Import student courses time: 10.21s

Test drop course: 88343

Test drop course time: 75.15s

Import student courses time: 9.49s

Test drop course: 88183

Test drop course time: 7.52s

Test course table 2: 100

Test course table 2 time: 0.27s

Test course table 2 time: 0.24s

Test search course 2: 500

Test search course 2 time: 3.44s

Test search course 2 time: 3.56s

Test enroll course 2: 100

Test enroll course 2 time: 0.12s