Add or change a table’s primary key in Access
An Access primary key in an Access database table is a field with unique values for each record in the table. You can use the key to connect data between tables.
Add a primary key to a table in Access - Microsoft Support
Add a primary key to a table Create a primary key to associate data between multiple tables. In the Navigation Pane, right click a table, and select Design View. Select the field or fields you want to use …
Create a table and add fields - Microsoft Support
When you create an Access database, you store your data in tables—subject-based lists that contain rows and columns. For instance, you can create a Contacts table to store a list of names, addresses, …
Guide to table relationships - Microsoft Support
For this reason, Access supports the Cascade Delete Related Records option. When you enforce referential integrity and choose the Cascade Delete Related Records option, and you then delete a …
Add an AutoNumber field as a primary key - Microsoft Support
Note: When you create a new table in Datasheet view, Access automatically creates a primary key for you and assigns it the AutoNumber data type.
Add a primary key to a table in Access - Microsoft Support
Training: Get up and running quick Add a primary key to a table Create a primary key to associate data between multiple tables. In the Navigation Pane, right click a table, and select Design View. Select …
Create, edit or delete a relationship - Microsoft Support
Notes: To create a one-to-one relationship Both of the common fields (typically the primary key and foreign key fields) must have a unique index. This means that the Indexed property for these fields …
Create and use an index to improve performance - Microsoft Support
In some instances, such as for a primary key, Access automatically creates an index for you. At other times, you might want to create an index yourself. This article introduces indexes and covers how to …
Video: Create many-to-many relationships - Microsoft Support
Select Table Design > Primary Key. Key icons appear next to both ID fields. Connect the three tables to create the many-to-many relationship To complete the many-to-many relationship, create a one-to …
Video: Create relationships with the Relationships Pane
Training: The Access Relationships pane creates relationships between tables. It requires a compatible data type between parent/child columns and doesn’t create a lookup list.