Update Table
    Set column = column

ALTER trigger [dbo].[badge_Print_history] on [dbo].[ev_registrant]
    for Insert, update
AS

/*
This should only return rows that are updates.
*/
IF EXISTS(SELECT 1 FROM deleted AS D JOIN inserted I ON D.primary_key = I.primary_key) 
    BEGIN
		INSERT [dbo].[client_gcsaa_badge_print_history]
            (
             s10_reg_badge_print_date,
             s10_reg_cst_key,
             s10_reg_key,
             s10_reg_evt_key,
             s10_reg_add_user,
             s10_reg_change_user,
             s10_reg_change_date,
             s10_reg_delete_flag,
             s10_reg_ivd_key
            )
            Select
                reg_badge_print_date,
                reg_cst_key,
                reg_key,
                reg_evt_key,
                reg_add_user,
                reg_change_user,
                reg_change_date,
                reg_delete_flag,
                reg_ivd_key
            from
                Inserted AS I JOIN
                deleted AS D ON
                    I.primary_key = D.primary_key AND
                    /*
                    This means the data in the desired column
                    changed.
                    */
                    I.column_updated <> D.column_updated 
            
	END
ELSE -- insert
    BEGIN
		INSERT [dbo].[client_gcsaa_badge_print_history]
            (
             s10_reg_badge_print_date,
             s10_reg_cst_key,
             s10_reg_key,
             s10_reg_evt_key,
             s10_reg_add_user,
             s10_reg_change_user,
             s10_reg_change_date,
             s10_reg_delete_flag,
             s10_reg_ivd_key
            )
            Select
                reg_badge_print_date,
                reg_cst_key,
                reg_key,
                reg_evt_key,
                reg_add_user,
                reg_change_user,
                reg_change_date,
                reg_delete_flag,
                reg_ivd_key
            from
                Inserted
	END