REXX FILE HANDLING | REXX COMMANDS IN MAINFRAME - EXECIO | READ, WRITE, UPDATE A FILE, ALLOCATION

Описание: REXX FILE HANDLING | REXX COMMANDS IN MAINFRAME - EXECIO | READ, WRITE, UPDATE A FILE, ALLOCATION
1. ALLOCATING A FILE
2. USGE OF A FILE
3. FILE OPERATION COMMANDS
4. REXX Command - EXECIO Return Code (RC)
5. Execution Steps
6. GENERAL FORM OF THE EXECIO COMMAND
7. Options for DISKR and DISKRU
8. When records are read from a file, the records can be captured in one of the 2 places.
9. WE CAN WRITE A FILE FROM TWO WAYS.
10. READING ALL RECORDS FROM A FILE INTO COMPOUND VARIABLE.
11. READING ALL RECORDS FROM A FILE INTO STACK.
12. READING ONE RECORD AT A TIME INTO THE STACK.
13. WRITING MULTIPLE RECORD AT A TIME FROM STACK TO FILE.
14. WRITING ONE RECORD AT A TIME FROM STACK TO FILE.
15. UPDATING A RECORD.
16. UPDATING NUMBER OF ALL RECORDS.
17. READING RECORDS FROM A FILE INTO AN ARRAY.
18. WRITING RECORDS FROM AN ARRAY.
19. COPYING ONE FILE TO ANOTHER.
20. Copying an entire data set to Another Along with Data using ARRAY & STACK.
21. STEM Functionality.
22. Adding 5 lines to the end of an existing sequential data set.
23. Some EXECIO OPEN & CLOSE Commands
#REXXFileHandling, #REXXCommands, #EXECIO