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Design of php-php price monitoring system

Source: Internet
Author: User
Keywords Design PHP Requirements Database
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Design PHP Requirements Database

  1. Any time, as long as the price changes, all the warning.
  2. Real-time warning when the user has been in the monitoring interface;
  3. When the user entered the monitoring interface, the user last entered the monitoring interface to the current time period of the price change to alert.
  4. Early warning methods include, but are not limited to, pop-up windows, color highlighting, and so on.

The above is the demand, how to design the database, and what method can be implemented

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