在PL/SQL中生成随机字符串（oracle 12c）

我试图使用PL/SQL生成一个随机字符串，其中只有2个固定单词。这是可能的吗？

这就是你要找的吗

SQL> with
  2  -- two fixed words
  3  test as
  4    (select 'fixed words' col from dual),
  5  -- split them to rows
  6  inter as
  7    (select level lvl, regexp_substr(col, '.', 1, level) let
  8     from test
  9     connect by level <= length(col)
 10    )
 11  -- aggregate them back, randomly
 12  select listagg(let, '') within group (order by dbms_random.value(1, max_lvl)) result
 13  from inter
 14  join (select max(lvl) max_lvl from inter) on 1 = 1;

RESULT
--------------------------------------------------------------------------------
reiosdwxf d

SQL> /

RESULT
--------------------------------------------------------------------------------
fe ixoddrws

SQL> /

RESULT
--------------------------------------------------------------------------------
 wdxeorsdfi

SQL>

---

你说只有两个固定词是什么意思？你能举个例子来更新这个问题吗？