which use database to load the studentdetails and html page to ask the required student details

component diagram attendance tracking system

Use the attendance tracking method of your choice:
Use a computer or a laptop (PC or Mac) in the classroom to call the roll. Manually mark absent and late students.
For a faster way, use the incredibly affordable and amazingly cool RFID Technology. Simply have the students pass their RFID key fob over the RFID reader to record their attendance.
Use a computer in the classroom as a sign-in station and have students sign in by swiping their student ID card in a magnetic strip reader or use a barcode reader. Students can also type their ID number on the keyboard.
Use one or more time clocks mounted on the wall near the classroom entrance to capture the attendance.
Use an Apple device (iPad, iPad mini, iPod touch, or iPhone) to call the roll.
Use an Apple device (iPad, iPad mini, iPod touch, or iPhone) and sign the students in by reading a QR barcode or swiping an ID card with a magnetic strip.

Best time and attendance system for small businesses: stratustime
Stratustime offers everything a small business needs in a time and attendance system. The cloud-based system has the most comprehensive time-tracking options we found, as employees can clock in and out via traditional time clocks, computers with Internet access, mobile devices and telephones. The system also manages paid time off, generates employee schedules, monitors overtime hours and integrates with a wide range of payroll services. We were also very impressed with the system's easy-to-use online portal, the company's customer service and the system's affordable monthly cost. Go here for a full review of the Stratustime time and attendance system.