(oracle)在存储过程中插入非常慢相比,手动插入运行 [英] (oracle) insert in stored procedure very slow compared to insert run manually
问题描述
我从Oracle sql工具运行一个插入,它从各种表中选择大约100.000行,并将它们插入到另一个表中不同的数据库中,这将在3分钟内结束。
我尝试存储过程中的相同查询或oracle中的PLSQL,我们运行大约2小时。有关信息,请使用源Oracle 11g和目标Oracle 10g
I run an insert from Oracle sql tool that selects about 100.000 rows from various tables and inserts them in another table at different databsae and this ends in 3 mins. I try the same query inside a stored procedure or PLSQL in oracle and we run for about 2 hours. For information i use Source Oracle 11g and the destination Oracle 10g
存储过程(每个商店大约需要2小时):
Stored Procedure (takes about 2 hour per store):
CREATE OR REPLACE PROCEDURE MGS.TRANSFER_DATA(a_date in varchar2) -- yyyymmdd
BEGIN
BEGIN
FOR xx IN(
SELECT STR_CD FROM MGS.STORE ORDER BY STR_CD ASC
) LOOP
CALL_LOG(xx.STR_CD,a_date,sysdate,"START INSERT");
INSERT INTO STOCK@BBS
SELECT
STR_CD, STK.DT, PROD_CD, QTY, ORDER_QTY, ORDER_QTY
FROM
MGS.STOCK STK, MGS.SALE SAL
WHERE STK.STR_CD = xx.STR
AND STK.STR_CD = SAL.STR_CD(+)
AND STK.PROD_CD = SAL.PROD_CD(+)
AND STK.DT = SAL.DT(+)
AND STK.DT = a_date;
CALL_LOG(xx.STR_CD,a_date,sysdate,"INSERT SUCESSFULL");
END LOOP;
END;
END TRANSFER_DATA;
END TRANSFER_DATA;
1个商店(只需3分钟):
I tried query for 1 store (just take 3 minute):
INSERT INTO STOCK@BBS
SELECT
STR_CD, STK.DT, PROD_CD, QTY, ORDER_QTY, ORDER_QTY
FROM
MGS.STOCK STK, MGS.SALE SAL
WHERE STK.STR_CD = 'STORE01'
AND STK.STR_CD = SAL.STR_CD(+)
AND STK.PROD_CD = SAL.PROD_CD(+)
AND STK.DT= SAL.DT(+)
AND STK.DT= '20120801'; -- yyyymmdd
推荐答案
在plsql中的查询变得缓慢,但我有解决方案:
I haven't got the answer why the query in plsql become slowly, but i have solution bellow :
CREATE OR REPLACE PROCEDURE MGS.TRANSFER_DATA(a_date in varchar2) -- yyyymmdd
BEGIN
BEGIN
FOR xx IN(
SELECT STR_CD FROM MGS.STORE ORDER BY STR_CD ASC
) LOOP
CALL_LOG(xx.STR_CD,a_date,sysdate,"START INSERT");
execute immediate '
INSERT INTO STOCK@BBS
SELECT
STR_CD, STK.DT, PROD_CD, QTY, ORDER_QTY, ORDER_QTY
FROM
MGS.STOCK STK, MGS.SALE SAL
WHERE STK.STR_CD = ''' || xx.STR || '''
AND STK.STR_CD = SAL.STR_CD(+)
AND STK.PROD_CD = SAL.PROD_CD(+)
AND STK.DT = SAL.DT(+)
AND STK.DT = ''' || a_date || '''
';
CALL_LOG(xx.STR_CD,a_date,sysdate,"INSERT SUCESSFULL");
END LOOP;
END;
这篇关于(oracle)在存储过程中插入非常慢相比,手动插入运行的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!