IBM Books

On update

Optional: Use this box to specify what action is to take place on the dependent table when a row of the parent table is updated. Click on the down arrow and select one of the following actions:

No action
Specifies that an error occurs for the UPDATE operation on the parent table and no rows are updated. An update rule of NO ACTION is enforced after other referential constraints. NO ACTION is the default.

Restrict
Specifies that an error occurs for the UPDATE operation on the parent table and no rows are updated. An update rule of RESTRICT is enforced before all other constraints.

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