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  • Recursive Association with compound primary key in SQL database

    Hello, I'm afraid I'm very new to this and really struggling. I have a table with a compound primary key composing of Code, Date, Client to represent an attendee on a course. I need to include a 'Lead Client' column to represent a recursive relationship where one attendee can be nominated to lead...

    Littlegreen15 pointsBadges:
  • Software interface design principles

    When I dial a number on my mobile phone, a small icon with an image of my mobile phone appears together with an animated green outgoing arrow. Underneath the arrow, the name and telephone number of the person I am ringing are shown (provided this person is in my address book). Which design...

    Shaz245 pointsBadges:
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