lesson 3 practice 3.7 level 1, please explain this code to me...I am not sure how and where is &name related to &idnum in this code?

[Kashmira Parekh]

Orders Taken by Employee 121044: Abbott, Ray

Order_ID	Order_Type	Order_Date	Delivery_Date
1231468750	1	25SEP2003	30SEP2003
1238367238	1	31JAN2006	31JAN2006
1238686430	1	12MAR2006	12MAR2006
1240903120	1	14DEC2006	14DEC2006

title;
footnote;

%let idnum=121044;
data _null_;
    set orion.employee_addresses;
    where employee_ID=&idnum;
    call symputx ('name',employee_name);
run;

proc print data=orion3.orders  noobs;
    var order_ID order_type order_date delivery_date;
    where employee_ID=&idnum;
    title "Orders Taken by Employee &idnum: &name";
run;

Orders Taken by Employee 121044: Abbott, Ray

Order_ID	Order_Type	Order_Date	Delivery_Date
1231468750	1	25SEP2003	30SEP2003
1238367238	1	31JAN2006	31JAN2006
1238686430	1	12MAR2006	12MAR2006
1240903120	1	14DEC2006	14DEC2006

Orders Taken by Employee 121044: Abbott, Ray

Order_ID	Order_Type	Order_Date	Delivery_Date
1231468750	1	25SEP2003	30SEP2003
1238367238	1	31JAN2006	31JAN2006
1238686430	1	12MAR2006	12MAR2006
1240903120	1	14DEC2006	14DEC2006

[Nisarg]

Hey Kashmira , 

CALLSYMPUT is a macro variable. In this code  

{call symputx ('name',employee_name) } we have created a macro 

variable "NAME" .

Check the link for MACRO in details: 

http://www.caloxy.com/papers/56-i_how_five_ways_to_create_ma.pdf

[Kashmira Parekh]

Thank you !! ill check the details out.

kashmira