Error ORA-01000: maximum open cursors exceeded

Question

Why Oracle return this error. When I change the OPEN_CURSORS in init.ora from 100 to 1000 without this error.
I want to keep Minimum cursors value. How can I change the Java program ?
96 er_write_asp('W349','HK','50112','USD',3.99)
97 er_write_asp('W349','HK','10112','USD',5.22)
98 er_write_asp('W349','HK','60112','EUR',13.07)
99 er_write_asp('W349','HK','50112','USD',3.9)
100 er_write_asp('W349','HK','40112','USD',5.65)
101 er_write_asp('W349','HK','90112','USD',2.75)
java.sql.SQLException: ORA-01000: maximum open cursors exceeded
ORA-06512: at "POSTCAL.ER_WRITE_ASP", line 10
ORA-06512: at line 1
java Program list.
     eric.leung 2003/12/02
     set CLASSPATH include C:\Oracle\Ora81\jdbc\lib\classes12.zip
     Purpose
     ===============
     Read text file, write into Oracle Database
import java.io.*;
import java.util.StringTokenizer;
import java.sql.*;
import java.lang.*;
import java.math.BigDecimal;
import java.util.Date;
public class writeASP {
// Login Information
static String user = "x";
static String passwd = "x";
static String ip = "x";
static String getfile = "c:\\temp\\asp.csv";
public static void main(String[] args) throws IOException {
     String line;
     int i = 0;
     int cnt = 0;
     int port = 0;
     Connection conn;
     Statement stmt;
     String query = "";
     String strone = "";
     String arry[] = {"","","","","","","","","","","","","","",
     // start to connection
     chkArgs(args);     
     FileReader inFile = new FileReader(getfile);
     BufferedReader in = new BufferedReader(inFile);
     try {                
     Class.forName("oracle.jdbc.driver.OracleDriver");
     conn = DriverManager.getConnection("jdbc:oracle:thin:@" + ip + ":1521:lcdx",
          user,passwd);
     stmt = conn.createStatement();
     while((line= in.readLine()) != null)
               cnt = cnt + 1;
               StringTokenizer mot = new StringTokenizer(line,",");
          if (mot.countTokens() > 0) {                   
                    for (i = 0; 0 < mot.countTokens() ;i++) {
                         arry[i+1] = "";
                         arry[i] = mot.nextToken();
                    } /* for */
               } /* if */           
               strone = arry[0].substring(0,1);
               if (strone.equals("W")) {
                    //abc(arry);
                    query = "er_write_asp(" +
                    quote(arry[0],',') +
                    quote(arry[1],',') +
                    quote(arry[2],',') +
                    quote(arry[3],',') ;
                    query = query + arry[4] + ")";               
               System.out.println(cnt + " " + query);
               CallableStatement cs = conn.prepareCall
                    ("{call er_write_asp(?,?,?,?,?)}");
               cs.setString(1,arry[0]);
               cs.setString(2,arry[1]);
               cs.setString(3,arry[2]);
               cs.setString(4,arry[3]);
          try {cs.setBigDecimal(5, new BigDecimal(arry[4])); } /*pur_cost */
          catch(NumberFormatException e) {cs.setDouble(5,0);}
               // System.out.println("Call string: "+ cs.getString());
               boolean flag = cs.execute();
               // ResultSet rs = cs.executeQuery();
               // stmt.executeUpdate();
               } /* if */
     } /* while */
     conn.close();
     } /* try */
     catch (Exception e) {
          System.err.println(e.toString());          
          } /* Catch */
     in.close();     
} /* main */
public static void abc(String g[])
     System.out.print(g[0] + " " + g[1] + " "
          + g[2] + " " + g[3] + " " + g[4] + " "
          + g[5] + " " + g[6] + " " + g[7] + " "
          + g[8] );     
     System.out.println();
private static String quote(String s)
     return "'" + s + "'";
private static String quote(String s,char j)
     return "'" + s + "'" + j;
public static void chkArgs(String[] args) {
     for (int j=0 ; j < args.length;j++) {
          if (args[j].trim().equals("-u")) {
               if (j + 1 < args.length) {
                    try { user = args[j+1];}
                         catch ( Exception e) {}
          } /* if */
          if (args[j].trim().equals("-p")) {
               if (j + 1 < args.length) {
                    try { passwd = args[j+1];}
                         catch ( Exception e) {}
          } /* if */
          if (args[j].trim().equals("-i")) {
               if (j + 1 < args.length) {
                    try { ip = args[j+1];}
                         catch ( Exception e) {}
          } /* if */
          if (args[j].trim().equals("-f")) {
               if (j + 1 < args.length) {
                    try { getfile = args[j+1];}
                         catch ( Exception e) {}
          } /* if */
          if (args[j].trim().equals("-h")) {
               help();
               System.exit(0);
          } /* if */
     } /* for */
} /* chkArgs */
public static void help() {
     System.out.println("\nWrite ASP Price Version 1.0 2003/12/02\n");
     System.out.println("Option:");
     System.out.println("\t-i IP Address");
     System.out.println("\t-u User name");
     System.out.println("\t-p Password");
     System.out.println("\t-f File name");
     System.out.println("\t-h Help");
     System.out.println("\nCall Oracle Stored Procdure");
     System.out.println("er_write_ASP(,,,,)");
} /* help () */
} /* Class */

Answer 1

Don't create a new callable statement each pass through the loop. Create it outside the loop and set the parameters & exec inside the loop. Close the resultset each time. Close statement after loop.