Create relationships and link rows together.
Relations can be used in Jet Admin to create relationships between rows, linking together their data across tables.
The related field allows you to represent the relationships between related records by creating links between them. This is particularly helpful when you have multiple tables of related items. For instance, if you have a table of
Customersand a table of
Companies, you can use a related field to link each
Customer rowto the
Companythat they work for.
Single relations show a one-to-one relationship. This is where one item relates to one other item.
Multiple relations show a one-to-many relationship. This is where one item relates to a list of other items.
In Jet, you can create relations between values using a Link to record column. With this column, you specify the type of relation you want - single or multiple. Your project then applies the relation to the values and tables specified.
Before adding a Relation column, you must first check that the values match in the columns that will be connected. Items cannot be linked together unless they match.
In this example, each employee in
Companythey work in.
- 1.In the
Contacttable, make sure there’s a column for the name of the employee’s
- 2.In the
Companytable, make sure there’s a column for the name of the location that can be tied to the
Here we'll show how to simply create a related Company field for each Customer. Each customer has
company_id, to display and link the company in the Customer table let's specify
link to record. There are 3 steps to setting up a related field:
1. Specify the type for a
Link to record
related collectionthen select
related fieldand select
Display fieldto display it on the Customer table: