从匿名PL/SQL中提取varchar数组时出现“ORA-03115:不支持的网络数据类型或表示”错误

Question

    Connection con = null;
    CallableStatement cstmt = null;
    ResultSet rs = null;
    String dequeueQuery = "DECLARE " +
            " type namesarray IS VARRAY(5) OF VARCHAR2(10); " +
            " names namesarray;" +
            "   total integer;" +
            "   BEGIN " +

            "   names := namesarray('Kavita', 'Pritam', 'Ayan', 'Rishav', 'Aziz'); " +

            "   ? := names;"+

            " END;";

    try{

            con = getConnection();

            con.setAutoCommit(false);

            cstmt =(OracleCallableStatement )con.prepareCall(dequeueQuery);
            cstmt.registerOutParameter(1, OracleTypes.ARRAY);
            boolean b = cstmt.execute();
            Array arr = cstmt.getArray(1);

              String[] recievedArray = (String[]) arr.getArray();
              for (int i = 0; i < recievedArray.length; i++)

                System.out.println(recievedArray[i]);

            con.commit();

    }catch (Exception e) {
        try {
            con.rollback();
        } catch (SQLException e1) {
            e1.printStackTrace();
        }`

请帮帮我.提前谢谢你。

Answer 1

java.sql.sqlexception：ORA-03115:不支持的网络数据类型或表示

这是由以下说法造成的：

cstmt.registerOutParameter(1, OracleTypes.ARRAY);

该语句表示array将是输出，但没有将实际的Oracle类型名指定为第三个参数。有关这方面的更多信息，您可以查看此Oracle文档。

cstmt.registerOutParameter(1, OracleTypes.ARRAY,"NAMESARRAY");

connect scott/tiger
CREATE OR REPLACE TYPE namesarray AS VARRAY(5) OF VARCHAR2(10) ;
/

java.sql.sqlexception：ora-06550:第1行，第180列：

PLS-00382:表达式类型错误ORA-06550:第1行第173列：

PL/SQL：已忽略语句

String dequeueQuery = "DECLARE " +
            " type namesarray IS VARRAY(5) OF VARCHAR2(10); " +
            " names namesarray;" +
            "   total integer;" +
            "   BEGIN " +
            "   names := namesarray('Kavita', 'Pritam', 'Ayan', 'Rishav', 'Aziz'); " +
            "   ? := names;"+
            " END;";

String dequeueQuery = "DECLARE " +
            " names namesarray;" +
            "   total integer;" +
            "   BEGIN " +
            "   names := namesarray('Kavita', 'Pritam', 'Ayan', 'Rishav', 'Aziz'); " +
            "   ? := names;"+
            " END;";

Kavita
Pritam
Ayan
Rishav
Aziz

import java.io.*;
import java.sql.*;
import oracle.jdbc.*;

public class DBQC {
   public static void main(String[] args) {
   try {
      Connection con=null;
      Class.forName("oracle.jdbc.OracleDriver");
      String connStr = "jdbc:oracle:thin:scott/tiger@//dbhost:1521/dbsrvc";
      con=DriverManager.getConnection(connStr);
      if(con != null)
      {
         System.out.println("Connection succeeded");

         String dequeueQuery = "DECLARE " +
            " names namesarray;" +
            "   total integer;" +
            "   BEGIN " +
            "   names := namesarray('Kavita', 'Pritam', 'Ayan', 'Rishav', 'Aziz'); " +
            "   ? := names;"+
            " END;";

         CallableStatement cstmt = null;
         con.setAutoCommit(false);
         cstmt =(OracleCallableStatement)con.prepareCall(dequeueQuery);

         cstmt.registerOutParameter(1, OracleTypes.ARRAY,"NAMESARRAY");
         boolean b = cstmt.execute();
         Array arr = cstmt.getArray(1);

         String[] recievedArray = (String[]) arr.getArray();
         for (int i = 0; i < recievedArray.length; i++)
             System.out.println(recievedArray[i]);

         con.commit();
      }
      con.close();
    } catch(Exception e){e.printStackTrace();}
    }
}