understanding database concepts
TRANSCRIPT
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Lesson 1 Understanding
Database Concepts
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Mastery Skills
Think: Define Database
Intuit: Predict the application of relationaldatabase to real life situation
Feel: Appreciate the advantages of a computerizeddatabase
Do: Illustrate and label the elements of the DBMSdiagram
Communicate: Describe how information in a
database is organized Lead: Initiate activities involving managing data
Be: Resolute in formulating plan of actions
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The Parable of the SowerMatthew 13:18
3A farmer wentout to sow his
seed. 4As he wasscattering theseeds, some fellalong the pathand the birdscame and ate it
up.
5
some fell on rockyplaces, where it didnot have much soil;
7other seed
fell amongthorns, whichgrew up andchoked theplants;
8still other seedfell on good soil,where it produceda cropa hundred,times what wassown.
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The Parable of the SowerMatthew 13:18
19
Those who hear the message about the Kingdom but donot understand it are like the seeds that fell along the path.The Evil One comes and snatches away what was sown inthem.20 The seeds that fell on rocky ground stand for those whoreceive the message gladly as soon as they hear it. 21 But it doesnot sink deep into them, and they don't last long. So whentrouble or persecution comes because of the message, they giveup at once.22
The seeds that fell among thorn bushes stand for those who hear themessage; but the worries about this life and the love for riches chokethe message, and they don't bear fruit.23 And the seeds sown in the good soil stand for those who hearthe message and understand it: they bear fruit
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Data and Information
Data is raw. It simply exists and has no
significance beyond its existence (in and
of itself). It can exist in any form, usable
or not. It does not have meaning of itself.
http://www.systems-thinking.org/dikw/dikw.htm
Data is raw information in anunorganized form (such as alphabets,
numbers, or symbols) that refer to, or
represent, conditions, ideas, or
objects. Data is limitless and present
everywhere in the universe.http://www.businessdictionary.com/definition/data.html
Data is often in the form of facts or
figures obtained from experiments orsurveys, used as a basis for making
calculations or drawing conclusions.
Microsoft Encarta 2008.
Information is the meaningful material
derived from computer data by organizing itand interpreting it in a specific way.
Microsoft Encarta 2008.
Information is data that has been given
meaning by way of relational connection.
This "meaning" can be useful, but does not
have to be.http://www.systems-thinking.org/dikw/dikw.htm
Information is data that (1) has been
verified to be accurate and timely,(2)
isspecific and organized for a purpose, (3) is
presented within a context that gives it
meaning and relevance, and (4) that can
lead to an increase in understanding and
decrease in uncertainty.http://www.businessdictionary.com/definition/information.html
http://www.businessdictionary.com/definition/data.htmlhttp://www.businessdictionary.com/definition/information.htmlhttp://www.businessdictionary.com/definition/information.htmlhttp://www.businessdictionary.com/definition/data.html -
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The computer is essentially a data processing machine. It accepts data,process these data, and generate information as output. Therefore,data is the source of information.
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Database
a systematically arranged collection of data, so structured
that it can be automatically retrieved or manipulated.
Microsoft Encarta 2008.
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Database management system, or DBMS,
is a computer software/program that is designedas the means of managing all databases thatare currently installed on a system hard drive ornetwork.
http://www.wisegeek.com/what-is-dbms.htm
DBMS
http://www.wisegeek.com/what-is-dbms.htmhttp://www.wisegeek.com/what-is-dbms.htmhttp://www.wisegeek.com/what-is-dbms.htmhttp://www.wisegeek.com/what-is-dbms.htmhttp://www.wisegeek.com/what-is-dbms.htmhttp://www.wisegeek.com/what-is-dbms.htm -
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Integration
I learned that
I noticed that
I discovered that
I realized that
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A database is a collection of related data,organized to provide easy access to it. Thelarger the data base the harder it is to managethe information. And for every large
databases, there is a Database ManagementSystem to handle that difficulty.
Closure
If data were processed in differentinstances; will they produce the sameresults?
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