Showing posts with label chapter 12. Show all posts
Showing posts with label chapter 12. Show all posts

Tuesday, March 22, 2011

i'm adding something

(+.+)
i guess i have to explain more about
database..why..?
because...........
that is the only chapter that
i've learned in the class..
hahaha..
it's ok what..
if not,there is nothing that i want to share..
please be thankful to Allah Almighty
ceh..ceh..ceh..

back to the topic..(-.-)
regarding to my lovely textbook,
we can classify this LARGE database 
into 4 types..
actually, i don't really know how many types of it..
as  i'm only referring  to the textbook..


i'll be providing more links later on if 
you guys really want to know more.
those 4 types are
  1. individual
  2. company
  3. distributed
  4. commercial
if shortening our lesson today because
i believe no one ever like to study a lot in 1 time..
so, let me just explain about those 2 at the top..


INDIVIDUAL..!
~ be more specific, it is primarily used by just 1 person..
see..that is what is the meaning of individual itself..
~all of the data are stored in user's hard disk drive..
so, try checking out on your own okay..?
~ many students familiar with these especially when we have to do a survey..
of course we need to save a lot of data right..

(somekind of data)
 
see (0....0)
just a simple term right..?

next, we proceed to the....
COMPANY..!
~create database for their own use..means, all of the information regarding
the company are stored on their own
~ normally, the database are manage by database administrator.
can guess why..? of course there are a lot of it..so, someone need to manage it..

so, i've thought about very2 simple one about
this type of database..
try click the link provided..
hope you guys will learn more..



 

Wednesday, March 16, 2011

heirarchy data

hai guys...i'm kk...(forgive me on my grammatic error)
just now i learn 'bout database...it is quite interesting topic...we learn where our data are provided and how it can travel from 1 place to another.
but now, i want to focus on hierarchy database. 
this type of database consist of parent and child.
notice that, child only allowed to have one parent compare to parents which can have many child.
for a moment, i link it to our real life. commonly every child have one parents. so it easy to make me remember about this kind of parent-child thing that occur in technology case.

 for me, this type of database are more composed. we can see the fluency of data move from top to bottom.

which 1 better?

hmmmm.
i'm so worried that i don't even
remember where i placed my key.
can't enter my room without it..

what should i do..?
don't care arr..
let me just borrow
the 'key' of this subject..
ok..ok..
i stop playing around..

in this entry,
i want to share about key field
for which,
each record in a database has at
least 1 distinctive field

wait!!
what field..?
ayoo!
distinctive field woo..
normally
it is an someone's identification number..
got it..?

now..!
let's talk about how to process the data
 BATCH PROCESSING
VS
REAL-TIME PROCESSING

very simple mehhhh
for batch processing,
normally it's take over several longer time
might be in hours, days or even month..
something like this..



haha..
your face when your phone bill come 
without permission in
a MONTH

let's compared with the
REAL-TIME PROCESSING..

this is the one for which
the data can be process in just
a very short time..
simple example is..
when you use
your ATM card
doesn't it only take
minutes for every transaction you make

see!
very simple right..?
enough for today..
anymore info,
i will quickly tell you guys..
just wait patiently


reference:
Computing Essentials Complete 2011

wait..!
learn more about this
sub topic..
click here ok