Oracle數據庫修改Number字段屬性(表中存在數據的sql 代碼)

--修改原字段名policyrebatepremium爲policyrebatepremium_TMP
  alter table fht_policy_reconciliation rename column policyRebatePremium to policyRebatePremium_TMP;

--增加一個和原字段名同名的字段policyRebatePremium
  alter table fht_policy_reconciliation  add policyRebatePremium NUMBER(19,2);

 --將原字段policyRebatePremium_TMP數據更新到增加的字段policyRebatePremium
  update fht_policy_reconciliation set policyRebatePremium=trim(policyRebatePremium_TMP);

  --更新完，刪除原字段policyRebatePremium_TMP
  alter table fht_policy_reconciliation drop column policyRebatePremium_TMP;

 

 

原文有bug、直接參考我這個就可以了