id (int) NOT NULL
user_id (int) NOT NULL
enroll_type (enum('course','testseries')) NOT NULL
testseries_id (int) NOT NULL
plan_id (int) NULL
pay_id (int) NULL
start_date (text) NULL
end_date (text) NULL
days (int) NULL
enroll_by (int) NOT NULL
enroll_status (enum('1','0')) NOT NULL
test_start_time (timestamp) NULL
test_progress_time (timestamp) NULL
test_end_time (timestamp) NULL
test_submit_time (timestamp) NULL
created_at (timestamp) NOT NULL
updated_at (timestamp) NOT NULL