janbenedictP

September 16, 2008

Why do we need database?

Filed under: Classics

As we all know Database has a availability of a storage system, the most obvious of these being persistence. To sum it up, we can identify the following reasons for wanting a Database Management Systems short for DBMS:

  • We need to share data of all kinds between users (except for very small systems), between tools working on them, and usually between different computers. All should be able to work with the same set of data.
  • We need persistent storage and storage must be reliable.
  • Several users and/or several tools must be able to safely access the same data concurrently.
  • A DBMS may provide more efficient access to large amounts of data, through indexing and other optimizations.
  • A DBMS and its data model provides an abstraction; we do not need to care about the physical storage format.
  • A DBMS may also be used for communication between different users or applications.
  • Before we go further, we should clearly define a few of the central terms that are going to be used in the following (some of them will have appeared already), to make it clear what we mean by them.

    Software Maintenance is a evolution (change) of software after initial delivery, the amount of work is distributed with 17% for corrective, 18% for adaptive and 60% for perfective changes.

    Software Object or Softwate configuration Item is an object which is not necessarily software in itself, but has been produced, or is being used, in a software project. It is also placed in computer storage (database, file system, memory). An object also has a type, and it usually has some data Attributes.

    Typical examples of software objects include source files, libraries, compilers, requirement specifications, user manuals, test scripts, programmers, change requests, customer records and so on.

    Configuration is a complete and consistent collection of objects and relationships between them that together form a whole with some meaningful properties. A configuration is not any random collection there has to be reason why we want to define the collection itself as an object. A configuration is thus a special case of a composite object, as defined above.

    The typical configuration is a program system which is built up of subsystems, each of which again is built up of modules. Configurations can also collect items along other dimensions. For example, a configuration for a complete software system deliverable could include executable programs, installation manual, user documentation, and registration forms. A similar configuration for the same system, but for internal use, may include source code, requirements specification, design documents etc.

    Transactions  is an envelope for a set of operations against a database. In traditional database use, this set of operations together constitute a single logical database operation as seen by the user.

    In addition to basic requirements of any DBMS, such as reliability, performance, multiuser access etc., we can identify a number of requirements pertaining to its use in a see.

    September 13, 2008

    Search for true love

    Filed under: Classics

    They said that real happiness
    When the search of true love ends
    But where does it live?
    When does true love exist?

    Maybe, it is the school or disco house
    Where me and my friends celebrate youth
    When they declare their loyalty to me
    But stab my back when I’m not when them

    I bet it is in the romantic places
    Where young lovers manifest their love
    When boy leaves girl
    After he knows she is pregnant

    For sure, its on front of the priest
    Where man and woman unite as one
    When only be separated by death
    But true love never ends

    No doubt, its in my home
    Where I and my family live together
    When my father left with his mistress
    While my mother has forgotten us

    At last its in the great cross
    Where Christ was hang
    When he offer his life
    For us to feel
    His unending love and mercy

    Now, for sure
    True love is in the heart of God
    Where he invites us to share it with him
    When he set us free
    For us to search for him.

    September 9, 2008

    To the new one

    Filed under: Classics

    Thank you.
    For drying up and wiping up my tears
    For helping me face my fears
    For hugging me when I was chilling
    For holding me when everybody left me hanging

    You tried to crack your craziest jokes
    just to see me smile
    You make every minute worth the while
    You sang some lullaby even if you don’t
    sound to good
    You carry me things even though you
    know I could

    You filled the empty space inside me
    You mended my heart and made me see
    That there’s someone like you
    Who could love me in a unique way like
    what you do

    I guess I could not wish for more
    Because this is too much from what I’ve
    asked for.

    September 8, 2008

    Betrayal

    Filed under: Classics

    An echo fades into the night
    an eerie mournful sound.
    A shooting stars disappears from sight
    and I crumble to the ground.
    There is no life within this garden
    my soos are the only sound.
    I have poisoned the honeyed fountain
    where your love could be found.

    Dazed, I stare at the stars above
    my grieving howls fill the night!
    Unintended betrayal of love
    has hidden you from my sight.
    I remember how it used to be
    when we shared our fears and delights.
    You are a treasured friend to me
    How can I make things right?

    Feeling afraind cold and lonely
    I long to tell you how I feel
    but you dont want to hear me.
    The pain for you is much too real.
    Should I back away and build a wall
    and block away how I feel?
    Or should I give you a call?
    We both need some time to heal.
    An echo fades into the night
    As our friendships disappeas.
    How do I know what is right?
    How can I ease my fears?
    If I do call you again
    would the old wounds reappear?
    I cant stand to cause you pain.
    Hurting you again is my worst fear.

    September 7, 2008

    Sweet Sacrifice

    Filed under: Classics

    So much love to give
    so little to spare
    my heart beat so fast when Im around you
    its just so hard not to stare.

    I came up to you one day
    spilling my thoughts and feelings with you
    to hear that you feel the same way
    is like a dream come true

    You wanted to keep things make simple
    I agreed with it too
    from that time until now
    I knew I lose you.

    So many stars to wish upon
    not a single wish come true
    hoping that you would soon notice
    that I really like you.

    It takes sometime
    to feel what Im going through
    to remind myself all the time
    that I cant have you.

    September 6, 2008

    Sun and Earth

    Filed under: Classics

    Sun and Earth
    like the sun who brightens the universe
    you bring light to my murky life
    I am the earth you illuminate
    adoringly your watchful, at mercy of your radiance

    you are the sun and I the earth
    going around in circles
    basking in your warmth
    I could never come too close

    count on me to always bask
    in your external beam and never
    will my day be complete
    without you, sun going my way

    but you are sun and I earth
    wanting to be nearer yet knowing
    never could I be engulfed by your warmth
    I would be sensility, a skirmish with destiny

    and so like the earth, in circles I go
    in remote delight of your splendor
    till big bang recurs and only then
    will the earth cease to adore the sun
    only then will the earth cease to adore the sun.






















    Get free blog up and running in minutes with Blogsome
    Theme designed by Hadley Wickham