162 | P a g e Property Type Area Price 4217 D Lake 99.92 4219 D Park 200.00 4220 S Lake 105.50 4221 F Park 175.25 4222 F Town 75.00 a Why is coded data used for Type? ............................................................................................................................................. ............................................................................................................................................. b What is the data type for Price? ............................................................................................................................................. ............................................................................................................................................. c What is meant by a key field? Which is the key field? ............................................................................................................................................. ............................................................................................................................................. Q4) Explain the following terms: database: ........................................................................................................................ ............................................................................................................................................. file: .................................................................................................................................... ............................................................................................................................................. record ............................................................................................................................... ............................................................................................................................................. Q5) A shop sells bicycles. Information about each bicycle in stock is held in a computer file. Part of the information is shown in the table below. Make Model Type Colour StockNo Price Smith Sprint Racing B 1471 $200.00 Thompson Maxi Racing B 1329 $185.00 Brown Speed Racing G 1654 $200.00 Davies Swift Mountain R 1972 $0.15 Smith Swallow Racing Y 2015 $300.00 Thompson Fly Mountain B 2149 $400.50 Brown Panther Racing Y 3249 $670.00 How many fields are shown? ............................................................................................................................................. ............................................................................................................................................. How many records are shown? ............................................................................................................................................. ............................................................................................................................................. Give a reason why the shop would need to delete a record from the bicycle stock file. ............................................................................................................................................. ............................................................................................................................................. Give a reason why the shop would need to add a record to the bicycle stock file.
O Level & IGCSE Computer P2 Workbook by Inqilab Patel
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