There are differences between full, selective, and exclusive copy or load processing. These differences should be remembered when specifying the replace (R) option on either the data set or member level, and when the output data set contains member names common to some or all the input data sets being copied or loaded. These differences are:

• When a full copy or load is performed, the output partitioned data set contains the replacing members that were on the last input data set copied.
• When a selective copy or load is performed, the output partitioned data set contains the selected replacing members that were found on the earliest input data set searched. After a selected member is found, it is not searched for again. Therefore, after it is found, a selected member is copied or loaded. If the same member exists on another input data set, it is not searched for, and hence, not copied or loaded.
• When an exclusive copy or load is performed, the output partitioned data set contains all members, except those specified for exclusion, that were on the last input data set copied or loaded.