Question

I have a huge SQL file that I want to restore to mysql server 5.5 …. while I’m restoring the the file at the middle of restoring process stopped, then i got an idea to split that file to several files using java … is anybody got the the idea how to split the SQL file into several files …..
the following code is for the java class that i create to split the SQL file… this class can create for each line in the sql huge file a file”which is not usable”, i would like to split the SQL file so i can have files which is able to be restored in the mysql-server

import java.io.*;

import java.io.FileWriter;

class DataBase 

{
 public static void main(String args[]){

  try{

  FileInputStream fstream = new FileInputStream("D:/dewiki-20110831-site_stats.sql");

  DataInputStream in = new DataInputStream(fstream);

  BufferedReader br = new BufferedReader(new InputStreamReader(in));

  String strLine;

  File f;

  int i=1;

  while ((strLine = br.readLine()) != null){

        f=new File("D:/myfile"+i+".sql");

  if(!f.exists()){

  f.createNewFile();

  PrintWriter out = new PrintWriter(new FileWriter(f));

  out.write(strLine);

  out.close();

  }

  System.out.println (strLine);

  i++;

  }

  in.close();

    }catch (Exception e){

  System.err.println("Error: " + e.getMessage());

  }

  }

}

Answer 1

actually there is no need to split the file into several files and store them to the database …
i found a way where you can restore the database to mysql which is using mysql commands

here is the command that i used:

mysql – u user_name -p your_password database_name < file_name.sql

it works for me …