题目内容
In developing a hospital database, it is determined that on the average, each patient will have 6 treatments during a hospital stay. The average length of a stay is three days. The hospital has 1000 beds. There are on the average 800 patients occupying beds each day. The relationship between PATIENT and TREATMENT is 1: M. The relationship between PATIENT and BED is 1:1, conditional. If treatment record occurrences are archived as soon as a patient is discarded from the hospital, how many occurrences of the TREATMENT records will be stored in the TREATMENT database file on the average
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