z/OS MVS JCL Reference
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Concatenating data sets

z/OS MVS JCL Reference

When data sets are concatenated, the application program can treat them as if they were one logical data set. In general, most of the logical attributes of the first DD statement apply to all of them. You can concatenate input data sets for the duration of a job step. Each of the concatenated data sets can reside on a different volume. For details on concatenating data sets, see z/OS DFSMS Using Data Sets. Note that you cannot concatenate output data sets.

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