| 摘要 |
The polling method of switch status based on Timer-triggered Scheduler of Stored Procedures is to create interface tables related with switch status in the database including switch object table, switch type table, alarms information table which are used to store meta-information and switch status values. Then, create stored procedure of acquiring relevant switch status for each kind of switch needed for polling of switch status, and data will be filtered out and switch status will be judged via the related stored procedures, and write the status values into relevant switch status interface table; finally create regularly-executed tasks to regularly schedule each stored procedure required to poll switch status. The whole process is composed of three parts: i.e., create relevant switch status interface table; create stored procedure of acquiring switch status and setting status value; regularly-executed tasks.
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