Here I am posting two trigger, I need difference for these two Trigger?

Question

SET QUOTED_IDENTIFIER ON 
GO
SET ANSI_NULLS ON 
GO




ALTER      TRIGGER [PIP_ENTRYINSERT]
   ON dbo.PIP_Entry
   
AFTER INSERT AS 

UPDATE PIP_ENTRY SET pipcode = (SELECT 'PIP'++CONVERT(VARCHAR,MAX(pipcode1)+1) FROM PIP_ENTRY) where pipcode =''
UPDATE PIP_ENTRY SET pipcode1 = (SELECT MAX(pipcode1)+1 FROM PIP_ENTRY) where pipcode1 = 0




GO
SET QUOTED_IDENTIFIER OFF 
GO
SET ANSI_NULLS ON 
GO

----------------------------
SET QUOTED_IDENTIFIER ON 
GO
SET ANSI_NULLS ON 
GO




ALTER      TRIGGER [PIP_ENTRYINSERT]
   ON dbo.PIP_Entry
   
FOR INSERT AS 

UPDATE PIP_ENTRY SET pipcode = (SELECT 'PIP'++CONVERT(VARCHAR,MAX(pipcode1)+1) FROM PIP_ENTRY) where pipcode =''
UPDATE PIP_ENTRY SET pipcode1 = (SELECT MAX(pipcode1)+1 FROM PIP_ENTRY) where pipcode1 = 0




GO
SET QUOTED_IDENTIFIER OFF 
GO
SET ANSI_NULLS ON 
GO