Merging multiple lines into only one separeted by \n

Question

Hello,
I have a query that returns some lines as result, instead of return lines, I want to return just one line separated by \n...
For example:
select 'name 1' as name from dual
union
select 'name 2' as name from dual
union
select 'name 3' as name from dual
The query above returns:
name1
name2
name3
What I need is:
name1\nname2\nname3
How could I solve this?
Thanks

Answer 1

in 10g,
SQL> WITH T
  2       AS (SELECT 'name 1' AS NAME FROM DUAL
  3           UNION
  4           SELECT 'name 2' AS NAME FROM DUAL
  5           UNION
  6           SELECT 'name 3' AS NAME FROM DUAL)
  7  SELECT REGEXP_REPLACE ( SYS_CONNECT_BY_PATH ( NAME, '\n'), '^\\n') AS new_name
  8    FROM (SELECT NAME, ROW_NUMBER () OVER (ORDER BY NAME) rn FROM T)
  9   WHERE CONNECT_BY_ISLEAF = 1
10  START WITH rn = 1
11  CONNECT BY rn = PRIOR rn + 1;
NEW_NAME
name 1\nname 2\nname 3
SQL> in 11g,
SQL> WITH T
  2       AS (SELECT 'name 1' AS NAME FROM DUAL
  3           UNION
  4           SELECT 'name 2' AS NAME FROM DUAL
  5           UNION
  6           SELECT 'name 3' AS NAME FROM DUAL)
  7  SELECT listagg ( NAME, '\n') WITHIN GROUP (ORDER BY NAME) as new_name
  8    FROM T;
NEW_NAME
name 1\nname 2\nname 3
SQL>