Changing column name

Hi Gurus
is it possible(any built in function or commands) changing columns name which moving out the data in the column.
create table xyz(x number);---it contains data
after change column name...it should be...
create table xyz(y number);

sql>create table xyz(x number);
Table created.
sql>insert into xyz values (1);
1 row created.
sql>alter table xyz rename column x to y;
Table altered.
sql>select * from xyz;
Y
1
1 row selected.

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