Example flow for simple HD databases

The process flow for making changes to simple HD databases by using the reorganization utilities is simple compared to the process flow for HD databases that use logical relationships or secondary indexes.

The following figure illustrates the process flow for modifying a database to use multiple data set groups.

Figure 1. Flow chart of process for modifying a database to use multiple data set groups
The process flow for changing to multiple data set groups is depicted: DFSURGU0 utility, delete and reallocate data sets, if database changes are needed run DBDGEN and then run DFSURGL0 utility, if no changes needed run DFSURGL0 utility, end of flow.