java.sql.SQLException : ORA-00604: error occurred at recursive SQL level 1 异常

Question

我收到以下 SQL 异常，但我不知道此异常的根本原因是什么？我也正在关闭数据库连接和语句。

java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1
ORA-01000: maximum open cursors exceeded
ORA-00604: error occurred at recursive SQL level 1
ORA-01000: maximum open cursors exceeded
ORA-01000: maximum open cursors exceeded

以下是我的代码:

 while(true)
 {

   Statement stmt2 = conn1.createStatement();
   ResultSet rs2 = null;

   int rec_count=0;
   rs2 = stmt2.executeQuery("select count(*) as cnt from   some_table");                                  
    while(rs2.next())
   {
     rec_count = rs2.getInt("cnt");
   }

   if(rec_count>0)
   {
     update_qry_b_trg1 = "update some_table set to_be_triggered=1,algo_status='D',dealer_id='HD001',price_trig_date=sysdate where buy_sell = 'SELL' and ordertype = 'BNLD' and to_be_triggered = 0 and algo_status = 'P' and Mod(group_ref_no,5)="+th_id;

   String final_qry = "BEGIN \n"+update_qry_b_trg1+";\n"+";\n END;";

   int rows = stmt1.executeUpdate(final_qry);
   stmt1.close();
   }

   rs2.close();
   stmt2.close();

   }

Answer 1

无论在何处初始化 stmt1，最好在 finally block 中将其关闭。在您的情况下，您将在 if 条件下关闭它。如果条件没有通过，语句将保持打开状态，你会得到这个

java.sql.SQLException: ORA-00604: error occurred at recursive SQL level 1

此外，您还让它在 while 循环中运行，因此您需要确保关闭每个打开的语句。