Filemaker pro relationship types to avoid

Relations between two tables using a text field! | FileMaker Community

filemaker pro relationship types to avoid

Hi all, I know this is a big no no in relationship databases. I for sure know this! But still somehow I created the relationship between my main two. You are totally right, avoid using self relationships if you really dont need them As Johan pointed out, it's your structure, not the type of data in use, that's the. A relationship is a powerful method for organizing your data. Using a relationship , you can join data in one or more tables based on FileMaker Pro 14 Help Note Use access privileges in the source table to limit or prevent access to related data. Match fields should be the same type, for example, number fields or a. About relationships. To create related tables, you define a relationship between two tables. FileMaker Pro supports the following types of relationships. •Use access privileges in the source table to limit or prevent access to related data.

About relationships

A relationship is established when the value in one fieldcalled the match field sometimes called a key field on one side of the relationship compares successfully with a value in the match field on the other side of the relationship according to the criteria you specify in the relationship. For example, you can create a relationship such that when the value in the Student ID field in a Students table equals the value in the Student ID field in a Classes table, the records in the two tables are related.

FileMaker Beginner Tutorial - Portal Relationship From Scratch in 12 min

To create, change, and view the relationships in your database, see Working with the relationships graph. Fields used in relationships A match field can be one field or a combination of fields that identifies a record in a table.

filemaker pro relationship types to avoid

For example, a match field can hold dates that, when compared with the criteria of the relationship, determine whether the relationship is successful. A key is a type of match field. Keys usually hold values that are used as IDs such as a product ID. There are two types of keys: A primary key value must be unique and not empty non-null.

Relationship 'leads', 'contacts' and 'accounts' | FileMaker Community

There is only one primary key in a table, but the key can consist of more than one field. There may be multiple foreign keys in a table. In a Sales database, the Customers table and the Invoice table can each use the Customer ID field to uniquely identify each customer and purchase. The Customer ID field in the Customers table is a primary key field, because this field uniquely identifies each customer. But the Customer ID field in both tables are match fields.

A typical example of a many-to many relationship is one between students and classes. A student can register for many classes, and a class can include many students. The following example includes a Students table, which contains a record for each student, and a Classes table, which contains a record for each class.

filemaker pro relationship types to avoid

A join table, Enrollments, creates two one-to-many relationships—one between each of the two tables. The primary key Student ID uniquely identifies each student in the Students table.

The primary key Class ID uniquely identifies each class in the Classes table.

  • Relationship 'leads', 'contacts' and 'accounts'
  • Many-to-many relationships
  • Beginner's questions on database relationship

To set up a join table for a many-to-many relationship: Using the example above, create a table named Enrollments. This will be the join table.

Relations between two tables using a text field!

Join tables typically hold fields that might not make sense to have in any other table. You can add fields to the Enrollments table, such as a Date field to keep track of when someone started a class, and a Cost field to track how much a student paid to take a class. Create a relationship between the two Student ID fields in the tables. Then create a relationship between the two Class ID fields in the tables.