Sometime a business may have data spread between several different databases. For sample one database is used for procurement, another one is for managing warehouse and the third one is for accounting. Also different suppliers may specify different names for the same … [Read more...]

This question was asked by a legal of mine. There was a criminal case and a recording. The recording was made indoors by a surveillance camera. The problem was that the room was too dark. For this reason it was desirable to get a more detailed recording and I was asked if it is … [Read more...]

Let's say there is a supermarket and it is equipped with a few tens of cash register. All of them are connected to a database server and information about all the purchases is saved to this database in real-time. … [Read more...]