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Displaying only free time slots

  1. #1
    monkeyhead is offline Novice
    Windows 7 Access 2007
    Join Date
    Nov 2010

    Displaying only free time slots

    Hi there,

    What I'm trying to do is the following:-

    Query my database to show only the time-slots which haven't been used and populate it to a drop down box. (I know how to populate it to the drop down box.)

    This is what I have:- (Tables)




    From researching around I'm pretty certain I need to have a join command in my SQL statement.
    To me the logical way of doing this is that in order to achieve what I want I need to check the AvailabilityTime and employee ID against that in the appointments table and if there isn't a match that should mean that chosen appointment time is free so this gives grounds to display all available free slots.

    The problem is I am not quite sure how to go about doing this SQLwise, any suggestions would be greatly appreciated!

  2. #2
    June7's Avatar
    June7 is offline VIP
    Windows XP Access 2010 32bit
    Join Date
    May 2011
    The Great Land
    Join on EmployeeID and time fields sounds right. Jointype: show all records from Availability and only those from Appointments that are equal. Criteria under the Appointment.EmployeeID field: Is Null

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