sqlplus environment variables

I have the following problem

in sqlplus command line I execetute the following

set heading off;

and the system not result to me the column headers;

I dont know the environment variable that not result to me for example "no rows select";

any idea;

Who is Participating?
slightwv (䄆 Netminder)Connect With a Mentor Commented:
If I understand the question:
set feedback off
glaAuthor Commented:
slightwv Yes you understand my question. And I accept you answer!
I am sorry for my english.
To see the column headings:

Set linesize 10000
Set pagesize 500
set trimspool on
Set heading on
Set echo on
set underline '-'

slightwv (䄆 Netminder) Commented:
Never apologize for bad English.  I can guarantee your English is 100% better than my attempt at any other language.
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