SQL 虚拟列

Question

我收到“SQL 错误：ORA-01733：此处不允许虚拟列”

这是我的代码：

update (
   Select g.FIRST300BB from ( 
      select FIRST300BB, row_number() over (order by pitchandeventid) r
      from gamedata_me 
      where hitterid = 5000
      and (eventcode = 'BB')
   ) g
   where r between 0 and 300
) t
set t.FIRST300BB =1

有什么想法吗？我被卡住了，使用 Oracle，所以我发现我无法执行 Update/From 语法……所以我正式圈了马车

Answer 1

例如尝试等效查询

update gamedata_me 
  set first300BB=1
where rowid in(
          Select g.rid from ( 
              select rowid rid, row_number() over (order by pitchandeventid) r
                  from gamedata_me 
                 where hitterid = 5000
                 and (eventcode = 'BB')
               ) g
   where r between 0 and 300
    )