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You can do this with SQL Server Management Studio. → Right click the table design and go to Relationships and choose the foreign key on the left-side pane and in the right-side pane, expand the menu "INSERT and UPDATE specification" and select "Cascade" as Delete Rule.
3 lip 2019 · In this article, we will review on DELETE CASCADE AND UPDATE CASCADE rules in SQL Server foreign key with different examples. DELETE CASCADE: When we create a foreign key using this option, it deletes the referencing rows in the child table when the referenced row is deleted in the parent table which has a primary key.
Solution. SQL Server T-SQL clauses such are “ON Delete Cascade” and “ON Update Cascade” are not new in SQL Server, but cascading on a temporal table was not allowed in SQL Server 2016. We will walk through the example in SQL Server 2017 to see how these 2 clauses work and how data is effected in the child table when the parent table is modified.
In this tip we look at a SQL Server script you can use to see the impact of deleting a record from a table has on other tables that have foreign key references to table. Menu Join
12 lip 2013 · Use the ON DELETE CASCADE option if you want rows deleted in the child table when corresponding rows are deleted in the parent table. If you do not specify cascading deletes, the default behavior of the database server prevents you from deleting data in a table if other tables reference it.
20 cze 2013 · SQL:2011 Spec. There are five options for ON DELETE and ON UPDATE that can apply to the FOREIGN KEY. These are called <referential actions>, directly from the SQL:2011 spec. ON DELETE CASCADE: if a row of the referenced table is deleted, then all matching rows in the referencing table are deleted.
23 paź 2019 · As SQL Server can refuse to create ON DELETE CASCADE constraints due to potential cycles, I decided to just indicate the FOREIGN KEY constraint and then have each table referencing t_parent create a FOR DELETE trigger, each performing the CASCADE or SET NULL operation on its own rows.
