HPC1102W No DBD selectors defined.

Explanation
 The JCL presented for processing has defined a
SORT step with no DBD selector statements in the SYSIN DD file. This
error might also indicate that SYSIN DD is not in-stream (DD *). The
SORT step is marked not executable.

User response
 If the JCL was created by the DBRC GENJCL.CA process,
check the skeletal JCL member and variable settings that were used.
If the JCL was produced by a non-IMS process, change the process to
properly generate the SYSIN DD statement and DB0 selectors into the
JCL for each SORT step.