Cascade primary key update to all referencing foreign keys. if you have defined the foreign key constraints as on update cascade then the primary key value that was changed should cascade down to all the foreign keys with browse other questions tagged sql-server sql-server-2008 foreign-key update referential-integrity or ask your own. For this foreign key, we have specified the on delete cascade clause which tells sql server to delete the corresponding records in the child table when the data in the parent table is deleted. so in this example, if a product_id value is deleted from the products table, the corresponding records in the inventory table that use this product_id. But, you can also cascade the actions using foreign key constraints. this is generally not used due to the fact that it is transparent, and leads to *mysterious* results. how to cascade updates and deletes to related tables. august 8, sql server – how to get last access/update time for a table; sql server – displaying line numbers.
Modify foreign key relationships. 07/25/2017; 4 minutes to read contributors. in this article applies to: sql server (starting with 2016) azure sql database azure sql data warehouse parallel data warehouse you can modify the foreign key side of a relationship in sql server 2017 by using sql server management studio or transact-sql.. If update cascading settings is used, when we update the value in referenced table , it will also update the value in parent table (foreign key table) column. link to scripts used in sql server. Before we get into the details of the delete cascade option i wanted to mention that there is another option you can use when creating foreign keys on tables, update cascade. i left out any details regarding this option from this tip as this is only necessary when the columns that are part of the foreign key are updated..
