Как да concat редове, разделени с интервал в Oracle?

Какво ще направите с толкова дълъг низ?

Както и да е, вижте този пример; ако listagg няма да работи, xmlagg ще.

SQL> create table test (id, col) as
  2  select rownum, a.column_name
  3  from user_tab_columns a cross join user_tab_columns b
  4  cross join user_tab_columns c;

Table created.

SQL> select count(*) from test;

  COUNT(*)
----------
      9261

SQL> select listagg(col, ' ') within group (order by null) result from test;
select listagg(col, ' ') within group (order by null) result from test
                                                                  *
ERROR at line 1:
ORA-01489: result of string concatenation is too long


SQL> select length(xmlagg(xmlelement(e, col, ' ').extract('//text()') order by null).GetClobVal()) length_result
  2  from test;

LENGTH_RESULT
-------------
        51156

SQL>