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Databases
are modern miracles essential to running businesses of all sizes.
An example -
- Supermarkets
have databases about each item on the shelves
- vendor, cost, sales price, inventory, etc.
- At
checkout, we get a printout of each item we've purchased as the
cashier scans sales into the computer. This also inputs more data
to the company database.
- The
main office uses this information to compile reports about product
sales by store, by vendor, etc.
- Invoices
and payments feed more information to the database. In fact, it's
hard to imagine medium to large-size businesses without lots of
people feeding lots of information into their databases.
- In
return, the computer manipulates the data and spits it out in ways
designed specifically for the users, managers and executives.
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