Column Constraints

references

Set the referencing column for a foreign key relationship. For example, id for a country_id column.

Example:

SchemaBuilder

SQL (MySQL)

onTable

Sets the referencing table for a foreign key relationship. For example, countries for a country_id column.

Example:

SchemaBuilder

SQL (MySQL)

onUpdate

Set the strategy for updating foreign keys when the parent key is updated.

Example:

SchemaBuilder

SQL (MySQL)

onDelete

Set the strategy for updating foreign keys when the parent key is deleted.

Example:

SchemaBuilder

SQL (MySQL)