Server stored procedure to convert date format before insert/ update

Question

The source which has date in dd-MMM-yy format, have to convert it to
yyyy-mm-dd hh:mm:ss:SS and insert/update into the database using stored procedure.
ALTER PROCEDURE [dbo].[uspEmployeeData]
@emp_id char(35),
@emp_title varchar(64),
@start_date datetime
AS
BEGIN
SET NOCOUNT ON;
IF EXISTS (SELECT 1 FROM [dbo].[employee] WHERE emp_id= @emp_id)
BEGIN
UPDATE [dbo].[employee]
SET emp_title = @emp_tit,
start_date = @start_date
WHERE emp_id = @emp_id
END
ELSE
BEGIN
INSERT INTO [dbo].[employee](emp_id, emp_title, start_date)
VALUES ( @emp_id, @emp_title, @start_date);
END
"The input data for the field/parameter "e_date" is invalid according to the expected SqlDbType DateTime. ---> System.FormatException: The string '04-DEC-65' is not a valid AllXsd value.". Where and
how to convert the date format

Answer 1

Format() - new to SQL SERVER 2012 or later - allows you to format an input value to a character string based on a .NET format string, with an optional culture parameter:
ALTER PROCEDURE [dbo].[uspEmployeeData]
@emp_id char(35),
@emp_title varchar(64),
@start_date datetime
AS
BEGIN
SET NOCOUNT ON;
IF EXISTS (SELECT 1 FROM [dbo].[employee] WHERE emp_id= @emp_id)
BEGIN
UPDATE [dbo].[employee]
SET emp_title = @emp_tit,
start_date = Format(@start_date,'yyyy-mm-dd')
WHERE emp_id = @emp_id
END
ELSE
BEGIN
INSERT INTO [dbo].[employee](emp_id, emp_title, start_date)
VALUES ( @emp_id, @emp_title, Format(@start_date,'yyyy-mm-dd'));
END
Example:
SELECT FORMAT(getdate(),'d','en-us') AS us
SELECT FORMAT(getdate(),'d','de-DE') AS de
SELECT FORMAT(getdate(),'d','pt-BR') AS br
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Ricardo Lacerda