TRY CATCH in sql server

How to add try catch in sql server in stored procedure

as

BEGIN

                SET NOCOUNT ON;

                BEGIN TRAN

                BEGIN TRY

                --

COMMIT

                END TRY

                BEGIN CATCH

                       SELECT    ERROR_NUMBER() AS ErrorNumber

                     ,ERROR_SEVERITY() AS ErrorSeverity

                     ,ERROR_STATE() AS ErrorState

                     ,ERROR_PROCEDURE() AS ErrorProcedure

                     ,ERROR_LINE() AS ErrorLine

                     ,ERROR_MESSAGE() AS ErrorMessage;

              ROLLBACK TRAN

    END CATCH

Citrix Receiver file unable to open

Associate the below path into the launch.ica - right click and select 'open with' browse the below path.

C:\Program Files (x86)\Citrix\ICA Client\wfcrun32.exe

WFCRun32 -  Windows Foundation Class Application Run (32-bit)

Convert two digit year into four digit year in C#

In the system, settings is on the "change date time settings' and click on the 'change calendar settings'