Multi-DB programs for distributed processing

Multi-DB programs can be used for distributed processing without changes. A multi-DB program accesses databases that belong to one DB configuration. With UDS-D, a multi-DB program can also access databases belonging to multiple DB configurations, which in turn may be located on several different hosts.

Figure 16 shows a multi-DB program, with the distribution of databases depicted in grey. This distribution has no effect on the multi-DB program.

 

Figure 16: Multi-DB program for distributed processing