Question

The first line seems to be correct. The second line was my SQLite code. With code i get an exception about an error near trigger. In VS it says the multipart identifier could not be bound. With SQLite the new stands for the row being insert. So i would like to increase the count of whomever the subscription recipient is. How do i do that with a SQL Server trigger?

CREATE TRIGGER  trig_0  ON  subscription   
 AFTER INSERT  AS  
UPDATE user_data 
   SET msg_count = msg_count + 1 
 WHERE id = new.recipient; 

Answer 1

There is no magic ‘new’ in SQL Server. There is a magic INSERTED, and is a table:

CREATE TRIGGER  trig_0  ON  subscription   
 AFTER INSERT  AS  
UPDATE user_data 
   SET msg_count = msg_count + 1 
FROM user_data
JOIN INSERTED ON id = INSERTED.recipient;