Trigger inserting updating deleting

An Example of Using the inserted Table in a Trigger to Enforce Business Rules Because CHECK constraints can reference only the columns on which the column-level or table-level constraint is defined, any cross-table constraints (in this case, business rules) must be defined as triggers. This trigger checks to make sure the credit rating for the vendor is good when an attempt is made to insert a new purchase order into the table must be referenced and joined with the inserted table.

For more information on the upcoming change, we invite you to read our blog post.

However, these data types are included for backward compatibility purposes only.

The preferred storage for large data is to use the varchar(max), nvarchar(max), and varbinary(max) data types.

For example, a table and a trigger can have the same name (however, to avoid confusion, this is not recommended).

A trigger is fired based on a triggering statement, which specifies: statement might include a list of columns. Deptno) AS Amp_list_ Emplist FROM Dept_tab d; The statement level triggers are useful for performing validation checks for the entire statement.

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