Joined: 06 Jun 2008 Posts: 8201 Location: Dubuque, Iowa, USA
Your first problem is that symbolic symbols are resolved in JCL -- they cannot be resolved in an input data set as you have specified.
Your second problem is that once JCL goes through the JES converter / interpreter, it cannot be changed. So you cannot read a data set and use the values read as symbolic parameters later on in the same job stream.
You need a program (or system utility) to read the file, generate the desired JCL (including the input values for //BSTIPT01 DD * ) and submit the JCL into the internal reader.