I scrolled your output all the way to the right and it looks like the strings in your columns are very wide (are they CHAR instead of VARCHAR?), so the result does not fit the width of R console. Hence R displays them that way.
So try to either trim them in your query
select rtrim(SUB_ACCOUNT_ID), ...
or in R:
require('stringr')
res$SUB_ACCOUNT_ID <- str_trim(res$SUB_ACCOUNT_ID)