各位大师们好
我有一个脚本定期填充表，该脚本崩溃并出现上述错误。奇怪的是，它在生产系统上运行了近3个月没有任何问题，上周突然崩溃。据我所知，桌子上没有任何变化。
有没有人遇到过这样的事情？我相信这与我在其中实现的聚合函数有关；但它最初有效。
请; 请找到附加的脚本部分，我已经开发成一个我认为会出错的程序。
创建或替换过程 V1 是
- 宣布
v_a VARCHAR2(4000);
v_b VARCHAR2(4000);
v_c VARCHAR2(4000);
v_d VARCHAR2(4000);
v_e VARCHAR2(4000);
v_f VARCHAR2(4000);
v_g VARCHAR2(4000);
v_h VARCHAR2(4000);
v_i VARCHAR2(4000);
v_j VARCHAR2(4000);
v_k VARCHAR2(4000);
v_l VARCHAR2(4000);
v_m VARCHAR2(4000);
v_n NUMBER(10);
v_o VARCHAR2(4000);
--
-- 填充 DEMO 表的过程
BEGIN
-- Delete all from the DEMO table
DELETE FROM DEMO;
-- Populate fields in DEMO from DEMOV1
INSERT INTO DEMO(ID, D_ID, CTR_ID, C_ID, DT_NAM, TP, BYR, ENY,
ONG, SUMM, DTW, REV, LD, MD, STAT, CRD)
SELECT ID, D_ID, CTR_ID, C_ID, DT_NAM, TP, TO_NUMBER(TO_CHAR(BYR,'YYYY')),
TO_NUMBER(TO_CHAR(NVL(ENY,SYSDATE),'YYYY')), CASE WHEN ENY IS NULL THEN 'Y' ELSE 'N' END, SUMMARY, DTW,
REV, LD, MD, '1', SYSDATE
FROM DEMOV1;
-- LOOP THROUGH DEMO TABLE
FOR j IN (SELECT ID, CTR_ID, C_ID FROM DEMO)
LOOP
Select semic_concat(TXTDESC)
INTO v_a
From GEOT
WHERE ID = j.ID;
SELECT COUNT(*)
INTO v_n
FROM MERP M, PROJ P
WHERE M.MID = P.COD
AND ID = j.ID
AND PROAC IS NULL;
IF (v_n > 0)
THEN
Select semic_concat(PRO)
INTO v_b
FROM MERP M, PROJ P
WHERE M.MID = P.COD
AND ID = j.ID;
ELSE
Select semic_concat(PRO || '(' || PROAC || ')' )
INTO v_b
FROM MERP M, PROJ P
WHERE M.MID = P.COD
AND ID = j.ID;
END IF;
Select semic_concat(VOCNAME('P02',COD))
INTO v_c
From PAR
WHERE ID = j.ID;
Select semic_concat(VOCNAME('L05',COD))
INTO v_d
From INST
WHERE ID = j.ID;
Select semic_concat(NVL(AUTHOR,'Anon') ||' ('||to_char(PUB,'YYYY')||') '||TITLE||', '||EDT)
INTO v_e
From REFE
WHERE ID = j.ID;
Select semic_concat(NAM)
INTO v_f
FROM EDM E, EDO EO
WHERE E.EDMID = EO.EDOID
AND ID = j.ID;
Select semic_concat(VOCNAME('L08', COD))
INTO v_g
FROM AVA
WHERE ID = j.ID;
SELECT or_concat(NAM)
INTO v_o
FROM CON
WHERE ID = j.ID
AND NAM = 'Unknown';
IF (v_o = 'Unknown')
THEN
Select or_concat(JOBTITLE || ' (' || EMAIL || ')')
INTO v_h
FROM CON
WHERE ID = j.ID;
ELSE
Select or_concat(NAM || ' (' || EMAIL || ')')
INTO v_h
FROM CON
WHERE ID = j.ID;
END IF;
Select commaencap_concat(COD)
INTO v_i
FROM PAR
WHERE ID = j.ID;
IF (v_i = ',')
THEN
v_i := null;
ELSE
Select commaencap_concat(COD)
INTO v_i
FROM PAR
WHERE ID = j.ID;
END IF;
Select commaencap_concat(COD)
INTO v_j
FROM INST
WHERE ID = j.ID;
IF (v_j = ',')
THEN
v_j := null;
ELSE
Select commaencap_concat(COD)
INTO v_j
FROM INST
WHERE ID = j.ID;
END IF;
Select commaencap_concat(COD)
INTO v_k
FROM SAR
WHERE ID = j.ID;
IF (v_k = ',')
THEN
v_k := null;
ELSE
Select commaencap_concat(COD)
INTO v_k
FROM SAR
WHERE ID = j.ID;
END IF;
Select commaencap_concat(CONID)
INTO v_l
FROM CON
WHERE ID = j.ID;
IF (v_l = ',')
THEN
v_l := null;
ELSE
Select commaencap_concat(CONID)
INTO v_l
FROM CON
WHERE ID = j.ID;
END IF;
Select commaencap_concat(PROID)
INTO v_m
FROM PRO
WHERE ID = j.ID;
IF (v_m = ',')
THEN
v_m := null;
ELSE
Select commaencap_concat(PROID)
INTO v_m
FROM PRO
WHERE ID = j.ID;
END IF;
-- UPDATE DEMO TABLE
UPDATE DEMO
SET GEOC = v_a,
PRO = v_b,
PAR = v_c,
INS = v_d,
REFER = v_e,
ORGR = v_f,
AVAY = v_g,
CON = v_h,
DTH = v_i,
INST = v_j,
SA = v_k,
CC = v_l,
EDPR = v_m,
CTR = (SELECT NAM
FROM EDM
WHERE EDMID = j.CTR_ID),
COLL = (SELECT NAM
FROM EDM
WHERE EDMID = j.C_ID)
WHERE ID = j.ID;
END LOOP;
END V1;
/
聚合函数 commaencap_concat（用逗号封装）、or_concat（用 or 连接）和 semic_concat（用分号连接）。
其余使用的表都链接到主表DEMO。
我检查了列大小，似乎没有问题。我尝试单独执行 SELECT 语句，但它们在不填充表的情况下给出了相同的错误。
有什么线索吗？
非常感谢您的预期支持。
感谢 APC 的所有帮助；特别是行类型和调试建议。我已经检查了所有列，并将那些小于 4000 字节的列设置为 4000 字节，但我仍然收到相同的错误消息。
我尝试的 SELECT 语句使用过程中的聚合函数之一：
Select semic_concat(TXTDESC)
-- INTO v_a
From GEOT
WHERE ID IN (SELECT ID FROM DEMO);
并且它引发了相同的字符串缓冲区太小错误；但是当我在语句中添加一个 group by 时，它起作用了。
Select semic_concat(TXTDESC)
-- INTO v_a
From GEOT
WHERE ID IN (SELECT ID FROM DEMO)
GROUP BY ID;
我尝试在过程中交换所有出现的此类语句，但它仍然给出相同的错误。再次感谢; 仍在努力。