要删除Oracle数据库中的重复记录,可以使用以下方法之一:
DELETE FROM table_name
WHERE ROWID NOT IN
(SELECT MIN(ROWID) FROM table_name
GROUP BY column1, column2, ...);
DELETE FROM
(SELECT column1, column2, ..., ROW_NUMBER() OVER (PARTITION BY column1, column2, ... ORDER BY column1) AS rn
FROM table_name)
WHERE rn > 1;
请注意,在上述示例中,table_name代表表名,column1、column2等代表确定重复记录的列。在使用这些方法之前,请务必备份数据以防意外发生。