What's the Simple way of importing into Database?

IN SQL server :By using SQL server integration service and create a package to import data from any database engine to SQL server

if the same db is on both side, then simple exp/imp is the easiest way. if two different dbs then if the exported file is a txt file then it can easily be iported in the target db, if not a txt file then there r severl other ways..

The simple way to import into database is the "IMP" import database command execute from command prompt.

Oracle Data Pump is the replacement for the original Export and Import utilities.
Available starting in Oracle Database10g and consider as simple way

copy and paste

PHPMyAdmin is a simple way to import data from a MySQL database into your DBs.

First, you have to mention what database (and what version) you are using Second, you have to specify what do you want to import (format of data you want to import).
Saad,

Dear User, By using conventional import we will use the following command: imp system/password file=(file_name).dmp log=(file_name).log full=y statistics=none

Universally, the most simplest way to import data into a database is using a text / csv file as source and destination as of your DBMS.
This method is valid for all modern DBMS

1) What database are you importing into ?

2) What is the format of the data that you want to import?