I have a large contact table that gets refreshed every quarter. I am trying to assign a unique identifier to the field that, unlike newid(), will remain constant with updates. I know I can build a string from things like firstname, lastname, address,city, state, zip, but what would be the best way to convert that string concatenation into an identifier that will be constant with every update (I know when people move it will change the id, but that is not of concern for me right now).
Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.
Using examples as well as descriptions, and references to Books Online, show the different Recovery Models available in SQL Server and explain, as well as show how full, differential and transaction log backups are performed