Yes,You are right,this is my first post.I am just here to share some valuable informations with you.
There is no internet user who don't know about Google.So what google does is that it makes our journey with internet comfortable and enjoyable.If there were no search engines then the internet could not be explored upto this extent.So how a search engine works?
Here is a brief introduction of search engines.What is search engine?
"A computer program that retrieves documents or files or data from a database or from a computer network."
So what exactly a database is?
"Integrated data files organized and stored electronically in a uniform file structure that allows data elements to be manipulated, correlated, or extracted to satisfy diverse analytical and reporting needs. ..."
to know more about database visit http://en.wikipedia.org/wiki/Database
So database stores the informations in form of tables,why?To make the searching,organising,editing,retrival easier.
Collection of interrelated datas stored in a tabular format is called Relational Database Management System(RDBMS).
Examples of RDBMS:Oracle,MySql,DB2,BigTable
So what a search engine does is that it takes our entered query as arguement to its DBMS and interms gives us the results based on the data stored in the database.
As you are familiar about the terms like database and search engines let me know u some informations on Google Search Engine.
Google uses BigTable as its DBMS which is designed by itself and it is managed through its own file system called Google File System(GFS).Now I will give you some techniques on "How to search google effectively."
1.place your search query within a double quote which will give u the exact result you want.
Example:let us say you typed
| pen drive contents |
you will get contents containing pen or drive or contents or pen drive contents
but if you enter like this
| "pen drive contents" |
"Go and check it now!"
Then definietly you will get contents only bases on "pen drive contents"
cool!
2.Include some operators listed in the table below with their importance while searching
| operator | Oper ator Meaning |
|---|---|
| + | Must be present in every match |
| - | Must not be present in any match |
| ~ | Lowers a ranking if present |
| * | Wildcard |
| < | Decrease a word’s importance |
| > | Increase a word’s importance |
| " " | Must match the exact phrase |
| () | Create subexpressions |
For example:
+hitler -france
the above will result in contents which must include "hitler" and must not include "france"
ind*
this will result in all the contents replacing anything inplace of * lile india,indi etc.
While returning the contents the search follows certain preference except the sponsered links which are paid
to decrease or increase the precedence u can use the > and < operators like ">hello" etc.
Ok now I gave you some techniquies.It's upto you to how to utlilize these things.
Have a pleasent searching.........
Please do not forget to comment in this post as it will inspire me for some more contents like this and everyone is welcome to add any new points to this post and the problems if any..
My next post will be based on Software Release Lifecycle .....
No comments:
Post a Comment