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    用java从oracle取数

    2018-04-09 07:41:34 次阅读 稿源:互联网
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    /*
    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();
      }
    }

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