select * from sample31;
select * from sample31 order by age;
select * from sample31 order by address;

asc: 오름차순/ desc:내림차순 정렬
select * from sample31 order by age asc;
select * from sample31 order by age desc;


select * from sample311;
select * from sample311 order by a;
select * from sample311 order by b;

select * from sample32;
select * from sample32 order by a;

select * from sample32 order by a, b;
select * from sample32 order by b, a;

select * from sample32 order by a asc, b desc;
select * from sample32 order by a desc, b asc;
