Sunday, March 11, 2012

Adding Buttons To A Form

Hvae the desired form open and go to the design view and then click on the 'button' button (:P)

Draw the button in the desired place and then an extra window will appear.


Choose what you would like to make the button do



In this case, you need to choose which query the button will link to...


The next step is to name the button

then click finish!

Inserting Sound And Image Files To A Database

right click on the desired field and click on 'insert object'



Click on the 'create from file' bubble



Browse through your documents and choose the desired image or audio file. then click 'ok.'



a new package will appear with your file embedded into the database.


Sunday, March 4, 2012

Bits and Bytes

1. Digit
Any of the numbers from 0 to 9

2. Base 10
The decimal numerical system that has 10 as it's base

3. Where does the word bit originate from

Creating a Form

to created a form, I clicked on the create tab, and then the form button.

Monday, February 27, 2012

Sunday, February 26, 2012

QR Codes


What are they?
QRCODES (quick response codes) are a type of  matrix barcode. 
This diagrem shows all of the different components of a QR code


What types of data can they hold?



Where are they used?
They were initially used to track parts in vehicle manufacturing. They are now used much more widely in commercial tracking, entertainment and loyalty marketing to name a few. QR codes can be found on many advertisements so that when you scan one... you are taken to a pictre, link or video that will give you more information about that product.
How do you use them? -> software... hardware.


Different standards?



http://en.wikipedia.org/wiki/QR_code 


Tuesday, February 14, 2012

Creating A Baisic Database

Tables, the building blocks of databases
Tables store data, so they are essential for any database
Every major subject should be kept in a different table to avoid confusion
Each table contains rows called records and columns called fields.

Fields Of Data
Fields are renameable
The data type of a field limits the type of information that you can enter. for example, number or currency
A unique identifier can be used for each record in the table
Additional control over the data are provided by the field properties that are a set of charatieristics

Each Record Is Unique
No two records are the same
The primary key is an identifier that is unique to each record and it should not change frequently

It's All Relative
The ID appears in all tables as a primary key and as a foreign key
A primary key separates similar information and makes each record unique. It also brings information together.
Primary keys link tables together
This is how we avoid repeated information on more than one table
When tables relate, the primary key of one table becomes a foreign key of the other table.

Practice

Test Yourself


Queries
queries can answer your questions by assembling stored data from a database
queries retrieve, sort, filter and assemble data on command
queries can combine wanted data from multiple tables
a querie can perform calculations
a querie can also remove data

Forms
graphic elements are stored in the form's design
forms make the data be viewed easily

http://office.microsoft.com/en-us/training/get-to-know-access-RZ006118141.aspx?section=17




Monday, February 13, 2012

class questions

Suppliers Table
contact name
contact number of companies in the USA



Product table
product names that cost more than $20


Products with more than 30 items in stock




Sunday, February 5, 2012

datatbase definitions

each row is called a record
each column is called a field
fields make up records
records make up the database file
altogether it is called a database

query - search for records that match field criteria
Report - The database's response to a query eg. Sally's address.
DMBS - Database Management System
Data Dictionary - Information that describes the contents, format and structure of the database and the relationship between its elements that are used to control access to and manipulation of the database.

data types
  • alphanumeric text - abc...123... ?*/....
  • Numeric - numbers only - 0 to 9
  • Objects -  photos, audio files (any digital object)
  • Boolean - only two options

Tuesday, January 31, 2012

The Yellow Pages

DATABASE
a structured and easily accessible set of data that is stored on a computer or external electronic device
examples
phonebook
contacts on a phone
song library on an IPod
the cloud


WOLFRAM ALPHA
the wolfram alpha website is different to the others as it stores many more than one type of information, while other databases would only have one topic, say, the laws of physics. This is beneficial because all of the information is in one place, as apposed to going to all different websties.



1.    I know there is a computer shop in the main street of Katoomba (Katoomba St.), but I don’t know its name. See if you can find the number for me.
Bennett office supplies, 122 Katoomba st, Katoomba NSW 2780, (02) 4782 2228

2.    Sally lives in Merrylands on Fowler Rd. and she wants to know the closest florist to where she lives. Help her out (see if you can get her a map).

3.    You want the phone numbers of some motels in Noosa QLD. But of course your phone book only has NSW numbers?
The Sebal resort Noosa - (07) 5474 6400
Netanya Noosa - 1800 072 072

4.    Just for fun try the white pages and see if you can find a map of you or your friends house.


¨      Is the yellow/white pages a database? Give reasons for your answer.

yes because it stores many different phone numberss and addresses.


¨      What can you see as some of the advantages of using this electronic database compared to the conventional paper based version of the yellow pages?

searching is quicker with any category and multiple categories. eg. genre, title, author, director...

more up to date because they are easier to edit

save space
better acess from anywhere there is internet

can be duplicated




¨      Do you see any dangers or disadvantages in this online version of the yellow pages?

invasion of privacy

remote areas have bad internet access
disadvantaged people may not have acess to the internet
elderly people may not understand how to use the online databases
criminals have acess to our private information