sql - 01403. 00000 - "no data found"

Question

我正在更新我的 docmeta 表，但我得到了

ORA-01403: 未找到数据ORA-06512: 在第 25 行01403. 00000 - “未找到数据”错误

下面是查询。我怎样才能摆脱这个错误？

DECLARE 
varPayTerm varchar2(300);
BEGIN
FOR X  IN(
SELECT 
  d.did, d.xproject_id
FROM 
  revisions r,
  (SELECT DDOCNAME, MAX(DID) mDID
   FROM 
    REVISIONS REV
   WHERE
    dcreatedate >='01-Jan-14'
   GROUP BY 
    DDOCNAME
  ) RevLatestID,
   docmeta d
  --temp_project p 
WHERE  
  RevLatestID.mdid = r.did
  and d.did = r.did
)  
 loop

select paymentterm 
into varPayTerm 
from project where pid = X.xproject_id and paymentterm is not null;

update docmeta 
  set xpaymentterm= varPayTerm
where did=X.dID
     and xproject_id =  X.xproject_id;
END LOOP;
END ;

Answer 1

SELECT...INTO 语句不返回任何行
如果不返回任何行是有效的，并且您想继续，您可以捕获并忽略 NO_DATA_FOUND 异常，如下所示:

   ...
    BEGIN
      SELECT ... INTO...;
    EXCEPTION
      WHEN NO_DATA_FOUND THEN
        paymentterm := 0; 
   -- or ant msg you want
    then return 'no data here';
    END;
    ...