Question

In this stored procedure there is an error occured. That is ‘format’ is not a recognized built in function name

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

ALTER PROCEDURE [dbo].[attendance_updatebyemployee_id]
@Employee_id int,
@AtDate datetime,
@FNLogged bit,
@ANLogged bit,
@LogTime varchar(10),
@LogOuttime varchar(10) 
AS
BEGIN   

select @AtDate 



SET NOCOUNT ON;    
    update Mst_Attendance set FNLogged=@FNLogged,
   ANLogged=@ANLogged,LogTime=@LogTime,LogOuttime=@LogOuttime 
   where EmployeeId=@Employee_id and Atdate = FORMAT(@AtDate,'MM/DD/YYYY')

select * from Mst_Attendance where Atdate=@AtDate and EmployeeId=@Employee_id


END

Answer 1

Try

 CONVERT(VARCHAR(10), @AtDate, 101) AS [MM/DD/YYYY]

However, surely your AtDate column should be a datetime?