ORA-00001: 违反唯一约束条件

 首先排除一下,要插入的数据(主键)是否和要插入的表里有重复数据,如果有先过滤一下

delete from 数据源表 where 主键字段 in (select 主键字段 from 要插入的表)

然后看下要插入的新数据(主键)本身是否有重复数据,如果有需要去重

 DELETE from 需要去重表
   WHERE (主键) IN (SELECT 主键
                       FROM 表
                       GROUP BY 主键
                      HAVING COUNT(主键) > 1)
     AND ROWID NOT IN (SELECT MIN(ROWID)
                         FROM 表
                        GROUP BY 主键
                       HAVING COUNT(*) > 1);