Question

What is the equivalent of SQLServer function SCOPE_IDENTITY() in mySQL?

Answer 1

This is what you are looking for:

LAST_INSERT_ID() 

In response to the OP’s comment, I created the following bench test:

CREATE TABLE Foo (     FooId INT AUTO_INCREMENT PRIMARY KEY );  CREATE TABLE Bar (     BarId INT AUTO_INCREMENT PRIMARY KEY );  INSERT INTO Bar () VALUES (); INSERT INTO Bar () VALUES (); INSERT INTO Bar () VALUES (); INSERT INTO Bar () VALUES (); INSERT INTO Bar () VALUES ();  CREATE TRIGGER FooTrigger AFTER INSERT ON Foo     FOR EACH ROW BEGIN         INSERT INTO Bar () VALUES ();     END;  INSERT INTO Foo () VALUES (); SELECT LAST_INSERT_ID(); 

This returns:

+------------------+ | LAST_INSERT_ID() | +------------------+ |                1 | +------------------+ 

So it uses the LAST_INSERT_ID() of the original table and not the table INSERTed into inside the trigger.

Edit: I realized after all this time that the result of the SELECT LAST_INSERT_ID() shown in my answer was wrong, although the conclusion at the end was correct. I’ve updated the result to be the correct value.