sql 条件插入

原普通插入语句：　　

insert into seriestable_upload values(New.SeriesID,0);

 加条件后：（当不存在该条数据插入）

insert into customerinfo_upload (CustomerID, upload_status)  
          select  New.CustomerID, '0'  
          from dual where not exists   
          (select * from customerinfo_upload where CustomerID=New.CustomerID and          upload_status='0') 

 加：

　　使用replace into；