示例#1
0
  @Test
  public void set() throws SQLException {
    ResultSet rs;
    PreparedStatement prep = conn.prepareStatement("select ?, ?, ?;");

    // integers
    prep.setInt(1, Integer.MIN_VALUE);
    prep.setInt(2, Integer.MAX_VALUE);
    prep.setInt(3, 0);
    rs = prep.executeQuery();
    assertTrue(rs.next());
    assertEquals(Integer.MIN_VALUE, rs.getInt(1));
    assertEquals(Integer.MAX_VALUE, rs.getInt(2));
    assertEquals(0, rs.getInt(3));

    // strings
    String name = "Winston Leonard Churchill";
    String fn = name.substring(0, 7), mn = name.substring(8, 15), sn = name.substring(16, 25);
    prep.clearParameters();
    prep.setString(1, fn);
    prep.setString(2, mn);
    prep.setString(3, sn);
    prep.executeQuery();
    assertTrue(rs.next());
    assertEquals(fn, rs.getString(1));
    assertEquals(mn, rs.getString(2));
    assertEquals(sn, rs.getString(3));

    // mixed
    prep.setString(1, name);
    prep.setString(2, null);
    prep.setLong(3, Long.MAX_VALUE);
    prep.executeQuery();
    assertTrue(rs.next());
    assertEquals(name, rs.getString(1));
    assertNull(rs.getString(2));
    assertTrue(rs.wasNull());
    assertEquals(Long.MAX_VALUE, rs.getLong(3));

    // bytes
    prep.setBytes(1, b1);
    prep.setBytes(2, b2);
    prep.setBytes(3, b3);
    prep.executeQuery();
    assertTrue(rs.next());
    assertArrayEq(rs.getBytes(1), b1);
    assertArrayEq(rs.getBytes(2), b2);
    assertArrayEq(rs.getBytes(3), b3);
    assertFalse(rs.next());
    rs.close();
  }
示例#2
0
 @Test
 public void colNameAccess() throws SQLException {
   PreparedStatement prep = conn.prepareStatement("select ? as col1, ? as col2, ? as bingo;");
   prep.setNull(1, 0);
   prep.setFloat(2, Float.MIN_VALUE);
   prep.setShort(3, Short.MIN_VALUE);
   prep.executeQuery();
   ResultSet rs = prep.executeQuery();
   assertTrue(rs.next());
   assertNull(rs.getString("col1"));
   assertTrue(rs.wasNull());
   assertEquals(Float.MIN_VALUE, rs.getFloat("col2"));
   assertEquals(Short.MIN_VALUE, rs.getShort("bingo"));
   rs.close();
   prep.close();
 }