Oracle添加字段

-- 一起执行,同时添加三个字段
alter table PROJ_BID_EVAL 
add procurement_office_opinion varchar2(2000) 
add procurement_decision varchar2(20) 
add procurement_decision_desc varchar2(200)  

  
 -- 逐条执行,添加字段的注释 
 comment on column PROJ_BID_EVAL.Procurement_Office_Opinion is '采购办仲裁意见'
 comment on column PROJ_BID_EVAL.Procurement_Decision is '采购办决策(字典编码)'
 comment on column PROJ_BID_EVAL.Procurement_Decision_Desc is '采购办决策(中文)'
  

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