là nén một lượng lớn dữ liệu nhị phân. JDK cho phép bạn hỗ trợ ổ cắm khác nhau cho các đối tượng khác nhau, vì vậy sự lựa chọn của socket để sử dụng phụ thuộc rất nhiều vào loại | JDBC and Java 2nd edition void clearWarnings throws SQLException void close throws SQLException void deleteRow throws SQLException int findColumn String cname throws SQLException boolean first throws SQLException Array getArray int index throws SQLException Array getArray String cname throws SQLException InputStream getAsciiStream int index throws SQLException InputStream getAsciiStream String cname throws SQLException InputStream getBinaryStream int index throws SQLException InputStream getBinaryStream String cname throws SQLException BigDecimal getBigDecimal int index throws SQLException BigDecimal getBigDecimal int index int scale throws SQLException BigDecimal getBigDecimal String cname throws SQLException BigDecimal getBigDecimal String cname int scale throws SQLException InputStream getBinaryStream int index throws SQLException InputStream getBinaryStream String cname throws SQLException Blob getBlob int index throws SQLException Blob getBlob String cname throws SQLException boolean getBoolean int index throws SQLException boolean getBoolean String cname throws SQLException byte getByte int index throws SQLException byte getByte String cname throws SQLException byte getBytes int index throws SQLException byte getBytes String cname throws SQLException Reader getCharacterStream int index throws SQLException Reader getCharacterStream String cname throws SQLException Clob getClob int index throws SQLException Clob getClob String cname throws SQLException int getConcurrency throws SQLException String getCursorName throws SQLException Date getDate int index throws SQLException Date getDate int index Calendar cal throws SQLException Date getDate String cname throws SQLException Date getDate String cname Calendar cal throws SQLException double getDouble int index throws SQLException double getDouble String cname throws SQLException int getFetchDirection throws SQLException int getFetchSize throws SQLException float getFloat int index throws SQLException float .