Using program control statements
Program control statements direct DFSORT in processing your records.
Some program control statements are required while others are optional.
You use the control statements to:
- Indicate whether a sort, merge, or copy is performed.
- Describe the control fields to be used.
- Indicate program exits for transferring control to your own routines.
- Describe DFSORT functions you want to have invoked.
- Describe input and output files.
- Indicate various options you want to use during processing.
You can supply program control statements to DFSORT from:
- A SYSIN data set
- A SORTCNTL data set
- A DFSPARM data set
- A 24-Bit parameter list
- An extended parameter list
See Specification/override of DFSORT options for an explanation of when to use each source.
This chapter begins with a summary of DFSORT program control statements and coding rules. A detailed description of each statement follows.