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Showing content with the highest reputation on 05/15/2022 in all areas
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I can try to help you to write the code (I'm not doing your assignment for you). Do you have regular bookable timeslots? What is the structure of "tblappointment"? (and other tables you are using?)1 point
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If the slots that can be booked are all regular intervals, put a UNIQUE constraint on (specialist, time) so, say, "Anthony, 10:00" can be entered once only. However if "Anthony, 10:01" were also valid then it gets more complicated.1 point
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I thought you would have realised in your initial code that you had the total_receivables from your array_sum() function call. If in doubt what a function is doing, there is always the manual Getting total expenses would be very similar. Subtracting one from the other is an easy bit.1 point
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