set nocount on;

use master;

declare @t table ( db sysname );
insert into @t
values ('test_database_01'), ('test_database_02'), ('test_database_03');

declare @db_name sysname
      , @command nvarchar(max);

declare MyDBs cursor forward_only for select db from @t;
open MyDBs;
fetch next from MyDBs into @db_name;

while @@fetch_status = 0
begin

print @db_name;
set @command = 'DBCC SHRINKDATABASE ( ' + @db_name + ' , TRUNCATEONLY);';
exec ( @command );

fetch next from MyDBs into @db_name;
end
close MyDBs;
deallocate MyDBs;