Computer Science Canada Inventory System using Binary Files |
| Author: | Paul [ Wed Nov 16, 2005 9:44 pm ] |
| Post subject: | Inventory System using Binary Files |
Instead of the normal text file where you can use sequential access to read/write information. This is using a binary file, in small scales there's really not alot of difference. But in large scales, I suppose there will be. For example: you have 123 1234 12345 12 1234 in a normal file, to get to the last "12" you would have to read through everything above it. Using a binary file, you can just "seek" to that specific location, provided you know how many bytes the data before it takes up. And that I have done using an array of records, in which the fields have specific size allocations. Anyhow, 3 files below: inventory.t - the actual inventory system program CreateDataFile.t - used to create the binary file inventorydata.txt - the binary file |
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