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“Internet + intelligent education” is the inevitable trend with the development of the education industry. iStudy, a Generic practice platform is a kind of practical curriculum evaluation platform for teachers and students, which combines operation, practice, evaluation, examination and item bank management with comprehensive teaching system and management system and is being accepted and enjoyed...
For the data stream characteristics of continuous, unbounded and real-time, continuous queries over data streams are generally based on windows. Windows placed on data streams are maintained by operators themselves for a query in most DSMSs. However, some operators can't maintain the windows properly, and a lot of redundancy and inconsistency may be incurred because the tuples are heavily copied and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.