Question

For our application(desktop in .net), we want to have 2 databases in 2 different remote places(different countries).Is it possible to use replication to keep the data in sync in both the databases while application changes data?. What other strategies can be used? Should the sync happen instantaneously or, at a scheduled time? What if we decide to keep one database ‘readonly’?

thanks

Answer 1

You need to go back to your requirements I think.

1. Does data need to be shared between two sites?
2. Can both sites update the same data?
3. What’s the minimum acceptable time for an update in one location to be visible in another?
4. Do you need failover/disaster recovery capability?
5. Do you actually need two databases? (e.g is it for capacity, for failover or simply because the network link between the two sites is slow? etc)
6. Any other requirements around data access/visibility?

Real-time replication is one solution, an overnight extract-transform-load process could be another. It really depends on your requirements.