DSNE121E `csect-id` NOT ABLE TO OPEN DATA SET

Explanation
  The Db2 subsystem
was unable to open the requested data set.

System action
  The TSO attachment facility is ready for more
input.

User response
  For information about why the data set could
not be opened, read the explanations of the messages that accompany
this message. Correct the condition, and resubmit the job.