JCL REFERBACK Statement
The backward reference or refer back is used to get the information from the previous step to the current step to reduce the redundancy coding.
STAR (*) is used as a refer back operator.
*.DDNAME - Referring the DDNAME from previous step *.STEPNAME.DDNAME - Referring the particular step’s DDNAME from previous steps. *.PROC-NAME.DDNAME - Referring the DDNAME from PROC which has only one step. *.PROC-NAME.STEPNAME.DDNAME - Referring the particular step’s DDNAME from the PROC
If any questions on the above, post your queries on Jcl Discussion forum
JCL Catalog Procedure JCL If Statement