Presentation on theme: "D ATABASES – L ESSON 1 Key Stage 3 ICT. Open the ICT levels spread sheet and find the Database tab Read each orange box and answer in the white box. S."— Presentation transcript:
Open the ICT levels spread sheet and find the Database tab Read each orange box and answer in the white box. S TARTER
O BJECTIVES Be able to define what makes a database and basic keywords Know where databases can be used Know how to apply search techniques to a database O UTCOMES All: Will be able to name and define a database, and its key terms Most: Will have searched on-line databases using AND / OR Some: Will be able to discuss why databases are used
C OPY THE MODULE RESOURCES Go to Common K ICT Year 7 Copy the folder Unit 4 Databases to My Documents ICT Year 7 This folder contain all the resources you need for the database module.
T ARGETS. Open the database workbook and fill in the boxes in purple ellipse (squashed circle) This workbook will be used throughout the databases unit – DO NOT LOSE IT. It will be used at the end by the teacher to assess your ICT Level.
A D EFINITION A database is a collection of information which is stored in a logical and structured way. In other words, it is some information which is saved and organised sensibly.
C OMPUTERISED D ATABASES There are millions of these! You use quite a few… Facebook, Google, PicSearch, EBAY, Gmail Microsoft Access In your Database folder, open the Database Workbook In your booklets – Task 1A - Page 1 Write your definition of a database Write some advantages? Write some disadvantages? Let’s look at one Database
H OW BIG ARE YOUR POCKETS ? 21 Stores the same as
B REAKING IT DOWN … What information is this result made up of? Each piece of information is a FIELD. All information relating to one thing is called a RECORD.
B REAKING IT DOWN … I TEMS OF THE SAME TYPE ARE CALLED FIELDS.
B REAKING IT DOWN … A LL THE INFORMATION (F IELDS ) BELONGING TO ONE ITEM IS A RECORD
B REAKING IT DOWN … A LL THE SAME TYPE OF RECORDS IN A DATABASE ARE STORED IN A TABLE.
D EFINE THE CONTENT OF A DATABASE Using the Video Club Fields document There are fields which are needed to join a film club - They are the orange boxes. Put the fields into a logical order. How many would be needed to make a record? Why is membership number needed? Match the data item to the fields – the purple ones. Extension: Write your own data items onto the green ovals.
T ASK 1B In your workbook complete the Database search task – on Page 2. Go through results with students Searching is called querying in databases When you selected additional features – this is an AND query – the PC has to have all the features. Insight could operate without an electronic – but it would be very slow and rely on paper and humans.
P LENARY Q UIZ – T ASK 1C Question Time. Answers the questions in your booklet. Ready……. Here come the answers – mark your own – I know you will be honest.
1. D ATABASE IS A database is a collection of information which is stored in a logical and structured way. Answer a)
2. R ECORD All information relating to one thing in a database is called a RECORD. Answer c)
3. F IELD Each piece of information is a FIELD Answer a)
4. T ABLE All the same type of records in a database are stored in a TABLE. Answer b)
5. O NE ADVANTAGE FOR A DATABASE IS … You can search massive amounts of data very quickly compared to a paper database. Answer b)
6. O NE DISADVANTAGE FOR A DATABASE IS … You need technology for it to work. Electricity, computers, software engineers, data entry clerks. Answer a)
A DD UP YOUR ANSWERS 1 – mark per correct answer – Put your total at the bottom.