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many-to-many and many-to-one

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  • many-to-many and many-to-one

    I'm switching from Approach to A5 and I've searched the board for many-to-many joins and many-to-one join options. I this possible in A5 like it is in Approach?

  • #2
    RE: many-to-many and many-to-one

    My Approach manual says, "You cannot set up a many-to-many relationship directly between two databases ... To set up a many-to-many relationship between two databases, you need to add an intermediate database. The other databases each have a one-to-many relationship with this database."

    Yes, A5 can do the same.

    My Approach manual also says, "Many-to-one relationships are often used as a lookup, to provide a convenient means of displaying data in a view. If you type a department ID on the employee form, the department name and location for that ID appear automatically."

    A5 can handle it as a lookup through field rules or as a one-to-one link in a set. From the parent database in the set, such a one-to-one link will connect every record in the parent database to the department name and location record in the child database that matches the department ID when that is the linking field.


    • #3
      RE: many-to-many and many-to-one

      You're correct about the database in between. Good. That solves a big problem for me. I just read about the lookups in A5 last night so that answers my other questions.

      Thanks alot for the quick response. I think I'm going to really like it here.



      • #4
        RE: many-to-many and many-to-one

        Not bad! What's it been? Less than 3 weeks sincy your first posting here? And, your already getting into the groove! I bet you're starting to see why I said I hated using Approach at work.

        Welcome to the club!



        • #5
          RE: many-to-many and many-to-one

          The best part I can see about A5 is the things I don't have to work around to get what I want. I operate a check by fax clearinghouse and the lookup and posting features are going to be an excellent fit for us. The other feature that I can't wait to use is the embedded browse. Our verification people are going to kiss me when they can see a browse and all the data for the record at the same time.

          I'll be picking your brains again soon.