I want to be able to display the resulting data from a select in a pretty way, not all columns under others.
Here is the way sqlplus displays my table data:
But I want to show them as:
Name | Address | Phone |
-------+---------------+-------------+
name1 | address1 | phone1 |
name2 | address2 | phone2 |
name3 | address3 | phone3 |
Not each column under the other

I usually start with something like:
Have a look at
help setif you have the help information installed. And thenselect name,addressrather thanselect *if you really only want those two columns.