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Can anyone help me with this situation? As the screenshot shown below, how can i fix this problem and create a relationship between the two tables? Thanks ahead!
Solved! Go to Solution.
@sunjin122 The "one" side of the relationship needs to have only 1 unique value in the column you are using.
example: Relationship on Client between table "Many" and "One"
Works | ||||
Many | One | |||
Client | Product | Client | ||
1 | A | 1 | Name 1 | |
1 | A | 2 | Name 2 | |
1 | S | 3 | Name 3 | |
2 | S | 4 | Name 4 | |
2 | S | 5 | Name 5 | |
Will Not Work | ||||
Many | One | |||
Client | Product | Client | ||
1 | A | 1 | Name 1 | |
1 | A | 2 | Name 2 | |
1 | S | 3 | Name 3 | |
2 | S | 4 | Name 4 | |
2 | S | 4 | Name 4 |
@sunjin122 The "one" side of the relationship needs to have only 1 unique value in the column you are using.
example: Relationship on Client between table "Many" and "One"
Works | ||||
Many | One | |||
Client | Product | Client | ||
1 | A | 1 | Name 1 | |
1 | A | 2 | Name 2 | |
1 | S | 3 | Name 3 | |
2 | S | 4 | Name 4 | |
2 | S | 5 | Name 5 | |
Will Not Work | ||||
Many | One | |||
Client | Product | Client | ||
1 | A | 1 | Name 1 | |
1 | A | 2 | Name 2 | |
1 | S | 3 | Name 3 | |
2 | S | 4 | Name 4 | |
2 | S | 4 | Name 4 |
Thank u for your explanation
From the error message, neither table has a column of unique values to create your relationship, at least not on the column you're using to relate them. What kind of tables are you trying to relate? I only ask because it does not always make sense to try to create this relationship. However, if you have a real need for a many-to-many relationship, this article gives an in-depth description of how to make this happen using a bridge table.
Need more context, what do the tables contain?
Thank you for your reply
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