Results 1 to 4 of 4
  1. #1
    WCStarks is offline Competent Performer
    Windows 10 Access 2016
    Join Date
    Sep 2016
    Posts
    314

    Access creating duplicate tables in relationship screen


    I have noticed that Access has added duplicate tables in the relationship screen. What is causing Access to do that? Is there something I need to change to avoid that?

  2. #2
    June7's Avatar
    June7 is online now VIP
    Windows 10 Access 2010 32bit
    Join Date
    May 2011
    Location
    The Great Land
    Posts
    52,816
    If a table is used in more than 1 relationship for multiple fields in one table, it must be duplicated in relationship builder. This is normal.

    It does indicate a non-normalized data structure or perhaps a recursive relationship. Provide a snapshot of your relationships or the db for analysis.
    How to attach file: http://www.accessforums.net/showthread.php?t=70301 To provide db: copy, remove confidential data, run compact & repair, zip w/Windows Compression.

  3. #3
    WCStarks is offline Competent Performer
    Windows 10 Access 2016
    Join Date
    Sep 2016
    Posts
    314
    After reading your comments. I reviewed the table relationships. There were two cases of duplicate "tables". I soon realized that there was an unnecessary extra link in one case. In the other case, one link was in a combobox in the child table (used to select a member from the parent table), rather than in the parent pointer field in the child table. I am not sure how they happened, but it would have happened early in the development of the db last year. I removed those links and hid the extra "tables", and Access seems happy. Thanks for your helpful comments.

  4. #4
    WCStarks is offline Competent Performer
    Windows 10 Access 2016
    Join Date
    Sep 2016
    Posts
    314
    What I said originally in this post was incorrect. Since I can't delete this post, I'll just say this instead.

Please reply to this thread with any new information or opinions.

Similar Threads

  1. Replies: 1
    Last Post: 12-27-2016, 07:49 AM
  2. Creating a relationship between two tables
    By amyhannah in forum Database Design
    Replies: 2
    Last Post: 12-16-2013, 07:44 PM
  3. Creating relationship for multiple tables
    By dave john in forum Programming
    Replies: 1
    Last Post: 09-02-2012, 08:18 AM
  4. Replies: 9
    Last Post: 09-28-2011, 11:56 AM
  5. duplicate tables in relationship view
    By digitaldb in forum Access
    Replies: 3
    Last Post: 07-20-2011, 11:52 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Other Forums: Microsoft Office Forums