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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»·ÍâÃ棬¶øÇÒʹÓÃÁËÕâЩStatmentºó£¬¼°Ê±¹Ø±Õ¡£×îºÃÊÇÔÚÖ´ÐÐÁËÒ»´ÎexecuteQuery¡¢executeUpdateµÈÖ®ºó£¬Èç¹û²»ÐèҪʹÓýá¹û¼¯£¨ResultSet£©µÄÊý¾Ý£¬¾ÍÂíÉϽ«Statment¹Ø±Õ£¨statementName.close()£©¡£
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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»¸öÓÎ±ê   
    //pst.setXXX()...;   
    pst.executeUpdate();   
           
    pst=conn.prepareStatement("another insert statement");//ÔÙ¿ªÆôÒ»¸öÓÎ±ê   
    //pst.setXXX()...;   
    pst.executeUpdate();   
  
    pst=conn.prepareStatement("third insert statement");//¿ªÆôÒ»¸öÓÎ±ê   
    //pst.setXXX()...;   
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SQL> show user
USER is "SYS"
SQL> create user t1 identified by t1;
create user t1 identified by t1
*
ERROR at line 1:
ORA-01920: user name 'T1' conflicts with another user or role name
SQL> drop user t1 cascade;
User dropped.
SQL> create user t1 identified by t1;
Us ......

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spool portal_schema.sql
SELECT DBMS_METADATA.GET_DDL('TABLE',u.table_name)
from USER_TABLES u;
SELECT DBMS_METADATA.GET_DDL('INDEX',u.index_name)
from USER_INDEXES u;
spool off;
2. ......

OracleÊý¾Ý×ֵ䳣Óòéѯ

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select o.object_name,c.comments
from user_objects o
left outer join user_tab_comments  c
on o.object_name=c.table_name
where object_type='TABLE'
and c.comments like '%ÏîÄ¿%'
 
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select c.table ......
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