Data partitioning splits tables into data sets. Each set can be modified by only one server. For example, data can be partitioned by offices, e.g., EnterpriseDB U.S. and Pakistan offices, with a server in each office. If queries combining U.S. and Pakistan data are necessary, an application can query both servers, or master/slave replication can be used to keep a read-only copy of the other office’s data on each server.