I'm trying to replace NULL with a default value of 'NO' but even when I execute it, it still displays NULL when I try to view the data. I've already tried dropping the constraint on the column, but it did not work

```
/*------------------------
use AuntieB
--alter table charity
--  add STORE char(10);
--update charity
--set STORE = 'YES'
--where Name = 'Salvation Army' or Name = 'Mother Wattles' or Name = 'Fresh Start Charity'
alter table charity
    add default 'No' for STORE;
select * from charity
------------------------*/
  CharityID Name                 Address                        City                           State Zip        Phone          ContactID STORE
----------- -------------------- ------------------------------ ------------------------------ ----- ---------- ------------ ----------- ----------
       1000 St. Francis Home     45875 West. Hill St.           Utica                          MI    48045      586-795-3486        1025 NULL
       1001 Helping Hands        98563 Stadium                  Detriot                        MI    48026      313-978-6589        1030 NULL
       1002 Boy Scouts           1155 E. Long Lake Rd           Troy                           MI    48085      248-253-9596        1036 NULL
       1003 Focus Hope           54362 Grand River              Detroit                        MI    48312      313-478-7895        1041 NULL
       1004 Fresh Start Charity  12569 Gratiot Ave.             Roseville                      MI    48084      555-555-2035        1046 YES       
       1005 St. John Hospital    59652 Shelby Rd.               Shelby Twp.                    MI    48317      586-569-6987        1050 NULL
       1006 Salvation Army       56231 Somewhere Blvd.          Eastpointe                     MI    48021      586-555-1212        1056 YES       
       1007 LA Angels Traders    2468 Halo Park Dr South        Los Angelas                    MI    90234      903-965-3556        2015 NULL
       1008 Purple Heart         28765 Van Dyke                 Sterling Heights               MI    48313      586-732-8723        1061 NULL
       1009 St. Raja Home        45875 West. Hill St.           Utica                          MI    48045      586-795-3486        1062 NULL
       1010 Mother Wattles       4568 Griswold                  Detroit                        MI    48205      313-478-9856        2016 YES       
       1011 Ron McDonald House   649 West Road                  Utica                          MI    48045      586-795-9979        1030 NULL
       1012 St. Jude             262 Danny Thomas Place         Memphis                        MI    38105      800-822-6344        1030 NULL

(13 rows affected)

```