Lateral-thinking

In recent times we have been hearing , reading (in many blogs) quite often about cloud computing ,big data and HPC ie. high performance computing. Undoubtedly, these are the buzz words for this decade. If you have been in the industry for quite some time then you can recall last decade was web 2.0 decade. So what is big data? Is it a new framework or new data modelling technique or part of NO SQL movement? I have seen many times people relate big data to one of these or they are confused about it. Same is with HADOOP, it is thought as a NO SQL database framework. Big data is nothing but just huge amount of data which requires mining. Per wiki , Big Data is a term applied to data sets whose size is beyond the ability of commonly used software tools to capture, manage, and process the data within a tolerable elapsed time. Big data sizes are a constantly moving target currently ranging from a few dozen terabytes to many petabytes of data in a single data set.So big data is a hovering p

During many interviews I have taken , I have observed even seasoned programmers find it difficult to explain the use of class.forname() method while making a JDBC connection object. In this post, I am just trying to explain this, Here is a simple JDBC code, import java.sql.*; public class JdbcConCode { public static void main(String args[]) { Connection con = null; String url = "jdbc:mysql://localhost:3306/nilesh"; String driver = "com.mysql.jdbc.Driver"; String user = "root"; String pass = "nilesh"; try { Class.forName(driver); con = DriverManager.getConnection(url, user, pass); System.out.println("Connection is created...."); //TODO //rest of the code goes here } catch (Exception e) { System.out.println(e); } } } Let's go through the code above, the url indicates the location of the database schema, here the database is nilesh . Then there is Driver which is the fully qualified JDBC driver class name.