The job is to write a small Visual Studio (Visual Basic preferred) demo that reads a given row / record from an existing customer address table in a Pervasive PSQL database (See [url removed, login to view] if you dont know this databse). This row / record should thereby be locked in a way that when the demo is started a second time in parallel this second started demo can NOT read the same row / record because it is locked by the first one. Only after the first demo releases the row / record the second one should get it.
The demo must use the Pervasive PSQL database. It would be good if you already have experience with it but it can also be downloaded as a 30 day trial and easily installed.