Question

我对此查询有疑问：

  MERGE INTO qot
  USING dual
  ON (qot_id = 1023125885)
  WHEN MATCHED AND qot_exc_id = 4 THEN UPDATE SET qot_exc_id = 259
  WHEN MATCHED AND qot_exc_id = 6 THEN UPDATE SET qot_exc_id = 131;

我收到了错误消息：＆＃39;缺少关键字＆＃39;。有人能给我任何线索吗？

谢谢！

问候，

河

Answer 1

我不知道为什么你只想更新时试图使用MERGE，从不插入。您不能像正在做的那样在WHEN子句中添加条件 - 请参阅documentation。

为什么不这样做：

update qot
set qot_exc_id = case qot_exc_id
                    when 4 then 259
                    when 6 then 131
                    end
where qot_id = 1023125885
and qot_exc_id in (4,6);

如果你真的需要一个MERGE，那么你需要类似的东西：

MERGE INTO qot
USING dual
ON (qot_id = 1023125885)
WHEN MATCHED THEN 
  UPDATE SET qot_exc_id = case qot_exc_id
                            when 4 then 259
                            when 6 then 131
                            else qot_exc_id
                            end;

或者也许：

MERGE INTO qot
USING dual
ON (qot_id = 1023125885 and qot_exc_id in (4,6))
WHEN MATCHED THEN 
  UPDATE SET qot_exc_id = case qot_exc_id
                            when 4 then 259
                            when 6 then 131
                            end;

合并命令会导致“缺少关键字”错误

1 个答案: