如何在oracle sql中用下一列数据替换一列数据？

Question

我有一个 table 有 4 列，我想用第三列数据替换第二列数据？

例如

Table1
       Title_ID   |     Title     |    Detail          |  Comments  |  
          1              HR          HR Manager             NULL
          2              IT          IT Manager             NULL
          3              FIN       Finance Supervisor       NULL

预期输出：

表 1

   Title_ID   |    Title      |    Detail          |  Comments  |  
      1         HR Manager          HR                  NULL
      2          IT Manager         IT                  NULL
      3        Finance Supervisor  FIN                  NULL

Answer 1

更新还是只是 select？

如果是前者，则

update table1 set
  title  = detail,
  detail = title;

如果是后者，

select title_id, 
       detail as title, 
       title  as detail, 
       comments
from table1