OracleÖдò¿ªÓα곬³ö×î´óÖµ
ÏòOracleÊý¾Ý¿â±íÖвåÈëÊ®¼¸ÍòÌõÊý¾Ý£¬¿ÉÊǵ±²åÈë3Íò¶àÌõºó£¬³ÌÐò¾ÍÅ×
Java´úÂë
ORA-01000 maximum open cursors exceeded
ORA-01000 maximum open cursors exceeded
Òì³£ÐÅÏ¢¡£GoogleÁËÒì³£ÐÅÏ¢£¬µÃÖªÕâÑùµÄ´íÎóºÜÈÝÒ׳öÏÖÔÚJava´úÂëÖеÄÖ÷ÒªÔÒòÊÇ£ºJava´úÂëÔÚÖ´ÐÐconn.createStatement()ºÍconn.prepareStatement()µÄʱºò£¬Êµ¼ÊÉ϶¼ÊÇÏ൱ÓÚÔÚÊý¾Ý¿âÖдò¿ªÁËÒ»¸öcursor¡£ÓÈÆäÊÇ£¬Èç¹ûÄãµÄcreateStatementºÍprepareStatementÊÇÔÚÒ»¸öÑ»·ÀïÃæµÄ»°£¬¾Í»á·Ç³£ÈÝÒ׳öÏÖÕâ¸öÎÊÌâ¡£ÒòΪÓαêÒ»Ö±ÔÚ²»Í£µÄ´ò¿ª£¬¶øÇÒûÓйرա£
Ò»°ãÀ´Ëµ£¬ÎÒÃÇÔÚдJava´úÂëµÄʱºò£¬createStatementºÍprepareStatement¶¼Ó¦¸ÃÒª·ÅÔÚÑ»·ÍâÃæ£¬¶øÇÒʹÓÃÁËÕâЩStatmentºó£¬¼°Ê±¹Ø±Õ¡£×îºÃÊÇÔÚÖ´ÐÐÁËÒ»´ÎexecuteQuery¡¢executeUpdateµÈÖ®ºó£¬Èç¹û²»ÐèҪʹÓýá¹û¼¯£¨ResultSet£©µÄÊý¾Ý£¬¾ÍÂíÉϽ«Statment¹Ø±Õ£¨statementName.close()£©¡£
ÏÂÃæ½«´úÂ븽ÉÏ
Å×Òì³£´úÂ룺
Java´úÂë
Connection conn = DBUtils.getConnection();//»ñÈ¡Êý¾Ý¿âÁ¬½Ó
PreparedStatement pstmt = conn.prepareStatement("select statement...");
ResultSet rset = pstmt.executeQuery();
while (rset.next()) {
PreparedStatement pst=conn.prepareStatement("insert statement...");//¿ªÆôÒ»¸öÓαê
//pst.setXXX()...;
pst.executeUpdate();
pst=conn.prepareStatement("another insert statement");//ÔÙ¿ªÆôÒ»¸öÓαê
//pst.setXXX()...;
pst.executeUpdate();
pst=conn.prepareStatement("third insert statement");//¿ªÆôÒ»¸öÓαê
//pst.setXXX()...;
&
Ïà¹ØÎĵµ£º
ºÜ¾ÃûÓиüÐÂOracleÊý¾Ý¿âµÄÎÄÕÂÁË£¬½ñÌìС±àÕûÀíÁËÒ»ÏÂ×ÊÁÏ£¬ºÍ´ó¼Ò·ÖÏíOracleµÄÌåϵ¡£oracleµÄÌåϵºÜÅÓ´ó£¬ÒªÑ§Ï°Ëü£¬Ê×ÏÈÒªÁ˽âoracleµÄ¿ò¼Ü¡£ÔÚÕâÀ¼òÒªµÄ½²Ò»ÏÂoracleµÄ¼Ü¹¹£¬ÈóõѧÕß¶ÔoracleÓÐÒ»¸öÕûÌåµÄÈÏʶ¡£
1¡¢ÎïÀí½á¹¹£¨ÓÉ¿ØÖÆÎļþ¡¢Êý¾ÝÎļþ¡¢ÖØ×öÈÕÖ¾Îļþ¡¢²ÎÊýÎļþ¡¢¹éµµÎļþ¡¢ÃÜÂëÎļþ×é³É£© ¿Ø ......
À´×Ôhttp://www.inthirties.com/thread-239-1-1.html
ÔÚÕâÀï»á½éÉÜUNDO£¬REDOÊÇÈçºÎ²úÉúµÄ£¬¶ÔTRANSACTIONSµÄÓ°Ï죬ÒÔ¼°ËûÃÇÖ®¼äÈçºÎÐͬ¹¤×÷µÄ¡£
ʲôÊÇREDO
REDO¼Ç¼transaction logs£¬·ÖΪonlineºÍarchived¡£ÒÔ»Ö¸´ÎªÄ¿µÄ¡£
±ÈÈ磬»úÆ÷Í£µç£¬ÄÇôÔÚÖØÆðÖ®ºóÐèÒªonline redo logsÈ¥»Ö¸´ÏµÍ³µ ......
Ò». °²×°Ç°µÄ×¼±¸
1.ÔÚÊý¾Ý¿â·þÎñÆ÷ÉÏÒÔAdministratorÉí·ÝµÇ¼µ½Windows
2.Í£Ö¹ËùÓÐOracleÏà¹ØµÄ·þÎñ¡£ÕâЩ·þÎñÃû³ÆÍ¨³£ÊÇÒÔOracle´òÍ·
3.Í£Ö¹Distributed Transaction Coordinator·þÎñ
4.±¸·ÝÓëOracleÊý¾Ý¿âÏà¹ØµÄËùÓÐÎļþ£¨°üÀ¨OracleÊý¾Ý¿âÈí¼þ¼°Êý¾ÝÎļþ£©£¬°ÑÕâЩÎļþ°´ÔÓеÄĿ¼½á¹¹¸´ÖƵ½°²È«µÄµØ·½£¬²¢× ......
¶ÔÓÚx$µÄÇé¿ö
SQL> grant select on sys.x$bh to t1;
grant select on sys.x$bh to t1
ERROR at line 1:
ORA-02030: can only select from fixed tables/views
¶ÔÓÚfixed tables/viewsÖ»ÄÜselect
Èç¹ûÏë°Ñx$bhµÄselectȨÏÞgrant¸øÆäËûÓû§Ôõô°ìÄØ,¿ÉÒÔ±äͨһÏÂ
SQL> create view xbh as select * from sys.x$ ......
1.Æô¶¯TNS¼àÌý
C:\Documents and Settings\Administrator>lsnrctl start
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on 13-7ÔÂ -2008 12:0
3:55
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Æô¶¯tnslsnr: ÇëÉÔºò...
TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Pr ......