How can I edit values of an INSERT in a trigger on SQL Server?

Question

I have the table Tb

ID | Name   | Desc
-------------------------
 1 | Sample | sample desc

I want to create a trigger on INSER

Answer 1

You may want to look at INSTEAD OF triggers.

CREATE TRIGGER Tb_InsteadTrigger on Tb
INSTEAD OF INSERT
AS
BEGIN
...

This will allow you to manipulate the data before it goes into the table. The trigger is responsible for inserting the data to the table.