How to remove blank spaces from SQL*Plus query?

Question

My query below being called from sqlplus is returning lot of spaces in the end of each value, how can I remove it?

See example below: * I substituted the values with x

Answer 1

The simplest way is to concatenate the columns with the commas in between, rather than using colsep:

select process_id
    ||','|| x1
    ||','|| x2
...

Note that you only have the comma in the concatenation strong, not between the columns. You end up with a single column in the reult.