摘要： alter table TEMPTABLE drop column ADDAMOUNT; alter table TEMPTABLE drop column ADDINITVALUE; alter table TEMPTABLE drop column REDUCEAMOUNT; alter table TEMPTABLE drop column REDUCEINITVALUE; alter table TEMPTABLE Add ADDAMOUNT NUMBER(18,2) ; alter table TEMPTABLE Add ADDINITVALUE NUMBER(18,2) ; al. 阅读全文