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Access Relationship Seminar
By Richard Rost   Richard Rost on Twitter Richard Rost on LinkedIn Email Richard Rost   10 years ago

In this seminar, you will learn just about everything there is to know about relationships in Microsoft Access. Setting up proper relationships between your tables is absolutely crucial to building a successful database. Bad table design, and bad relationships between those tables, is disasterous, and will cause you nothing but trouble down the line.

This seminar covers just about all of the different possible relationship scenarios that you will ever come across. We will build eight (8) different database projects so you can see how to set up good relationships between your tables. This seminar will teach you about all of the following types of relationships:

1. No relationships
2. One-to-Many
3. One-to-One
4. Many-to-Many
5. Self-Join One-to-Many
6. Self-Join Many-to-Many
7. Reverse Relationships
8. Multiple Relationships

We will build sample databases to track:

1. Children to Parents with their relation (one-to-many)
2. Which parents receive mail on their child's behalf
3. Student data with a secondary optional detail table (one-to-one)
4. Vendors to Products and vice versa (many-to-many)
5. Employees to Supervisors (self-join, one-to-many)
6. Complete family history with relationships (self-join, many-to-many)
7. Organizations to Members (whether companies, families, charities, etc.)

You can learn more about this seminar here: Access Relationship Seminar

Of course if you have any questions, post them here!

One to Many Upload Images   Link  
Donald Wilkins 
6 months ago
Richard,

How do you query information when you have a table with more than one, one-to-many relationships?  

Thank you for your help and excellent training videos.

Don Wilkins
Richard Rost
6 months ago
You just bring all of the needed tables together into a query, make sure the joins are all correct, and pick the fields you need, setting criteria and sorts where desired.
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Word Mail Merge with Access Upload Images   Link  
Emad Al-Baghli 
12 months ago
Hi, for example if I link "RelativeTypeID,Number" with RelativeType Table. If I make Mail Merge by Parent Table I did not get Mother, Father, I got 1, 2. I want to see Mother and Father in MS word. How can I fix that?
Alex Hedley
12 months ago
Those values you need arent in the Table that is being used.
Build a query first with all the fields you need then use that as your source.

If its not a difficult layout instead of doing it in Word you could just make a Report in Access and build it all in one app.
Emad Al-Baghli
12 months ago
If I make query I still get numbers stored on Parents table. If make mail merge I got numbers instead of Mother and Father . Kindly if u have better solution please let me know?
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Search Combo Box with Subform Upload Images   Link  
Elaine Heltman 
2 years ago
Hi Richard. With a one to many relationship between master and child forms, I have a search/find combo box in the master form that's linked to a continuous child form which shows the related records or an empty field. I'd like the child form field to be an updatable/editable combo box, so the user can either choose to add a related record from the combo or add a new record to the table (and requery the combo). A continuous form without the combo box works, but I want the user to be able to select an item. I've accomplished this in a many to many form/subform using a junction table as the child form, but can't figure it out for a one to many relationship. Thanks!
Richard Rost
2 years ago
I'm not sure what you're trying to do. I can't picture it. Can you email me some screen shots? I still need to get picture uploading working on the web site. amicron@gmail.com
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