用java从oracle取数_ORACLE_学习笔记★闵涛★计算机学习电脑编程软硬件技巧


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用java从oracle取数

作者：闵涛文章来源：闵涛的学习笔记点击数：683 更新时间：2009/4/22 21:58:32

/*
drop table varray_table;
drop type num_varray;

CREATE TYPE num_varray AS VARRAY(10) OF VARCHAR2(12)
/
CREATE TABLE varray_table (col1 num_varray);
INSERT INTO varray_table VALUES (num_varray('你好', 'abc'));

select * from varray_table;

import java.sql.*;
import java.math.*;
import oracle.jdbc.driver.*;
import oracle.sql.*;

class Array1
{

public static void main(String args[]) throws Exception
{
int oracleId = CharacterSet.ZHS16GBK_CHARSET;
CharacterSet dbCharset = CharacterSet.make(oracleId);

DriverManager.registerDriver
(new oracle.jdbc.driver.OracleDriver());

Connection conn =
      DriverManager.getConnection
                       ("jdbc:oracle:thin:@10.9.200.58:1521:db01",
                        "mytest",
                        "mytest");

Statement stmt = conn.createStatement();

ResultSet rs = stmt.executeQuery("SELECT * FROM varray_table");

while (rs.next()) {
ARRAY my_array = ((OracleResultSet)rs).getARRAY(1);

    // return the SQL type names, integer codes,
    // and lengths of the columns
    System.out.println ("Array is of type " + my_array.getSQLTypeName());
    System.out.println ("Array element is of typecode " + my_array.getBaseType());
    System.out.println ("Array is of length " + my_array.length());

    // get Array elements
    String[] values = (String[]) my_array.getArray();
    for (int i = 0; i < values.length; i++)
    {
       oracle.sql.CHAR out_value = new oracle.sql.CHAR(values[i], dbCharset);
       System.out.println(">> index " + i + " = " + out_value);
    }

}

rs.close();
stmt.close();
conn.close();
}
}