1. XINFO – Programming Languages zOS – Cobol

2. What is this presentation about?
This PowerPoint gives you a short overview about XINFO’s Cobol Interface.
This button can be used to jump to specific slides in this presentation.
General program information
Click on this symbol to jump to the overview slide

3. Table of Contents General program information
Copy (which program uses which copy member)
Call (which program calls which program)
Graphics (“inter language” call graph)
Select/Asign, file access, file section (file usage)
DB2 access (EXEC SQL Statements)
CICS access (EXEC CICS)
DLI access (IMS, EXEC DLI and CBLTDLI)
Variable declarations, variable usage
Unused code
Comments

4. The entry point to XINFO’s Cobol data
Cobol – General Info
The entry point to XINFO’s Cobol data

5. Cobol – General Info
Search for programs by specifying attributes, e.g.
- uses SQL
more than 1000 lines of code
was changed after a certain date

6. Cobol – General Info Load module name: source member or program id or
external translation
SQL, CICS, DLI etc. Y/N
Code line qty
Program names
Comments qty

7. Which programs are using this copy member?
Cobol – Copy
Which programs are using this copy member?

8. Nesting Level (Copy in Copy)
Cobol – Copy
SQL include Y/N
Copy statement found
Nesting Level (Copy in Copy)
Replacing Y/N
Programs

9. Right mouse click e.g. shows copy member
Cobol – Copy
Right mouse click e.g. shows copy member

10. Declaration of a program name
Cobol – Copy
Next example:
Declaration of a program name

11. Cobol – Call
Select option 3 - CALL

12. Which programs are calling this program?
Cobol – Call
Which programs are calling this program?

13. Section within the program (not used in this example)
Cobol – Call
Calling programs
Called program
Variable name
Parameters
Section within the program (not used in this example)

14. Right mouse click e.g. shows source member
Cobol – Call
Right mouse click e.g. shows source member

15. Source with dynamic call.
Cobol – Call
Source with dynamic call.
A previous “MOVE pgmname to varname” was translated by XINFO’s scanner.

16. Cobol – Call
Question:
Which programs are
called by “DSN8CC0”?

17. DSN8CC0 calls two programs (which may contain more program calls)
Cobol – Call
Answer:
DSN8CC0 calls two programs (which may contain more program calls)

18. Which programs are called by DSN8CC0?
Programs Call
Which programs are called by DSN8CC0?
Program call shows all calls over multiple levels, independently of the used program language!

19. All calls over all levels
Program Call
All calls over all levels

20. Program Call Graph Click on All - GRAPH - Programs Call Diagram…
… or right click on any record - GRAPH - Programs Call Diagram

21. This chart shows all program calls clearly
Program Call Graph
This chart shows all program calls clearly

22. Cobol – Files Here you can get information about: file definitions
file access (read/write)
etc

23. Search for Main Program “DSN8*” and Assignment-Name “*-S-*”
Cobol – SELECT/ASSIGN
Search for Main Program “DSN8*” and Assignment-Name “*-S-*”

24. Cobol – SELECT/ASSIGN
FILE-CONTROL.
SELECT REPOUT
ASSIGN TO UT-S-REPORT.
File/DD name ”assignments” and the parameters (taken from File-Control).

25. Select option 6 – File Section
Cobol – File Section
Select option 6 – File Section

26. Cobol – File Section
File attributes from file description, eg record length, record mode etc.
FILE-CONTROL.
SELECT REPOUT
ASSIGN TO UT-S-REPORT.
FILE SECTION.
FD REPOUT
RECORD CONTAINS 120 CHARACTERS
LABEL RECORDS ARE OMITTED
DATA RECORD IS REPREC.
01 REPREC PIC X(120).

27. Search for Main Program “DSN8*” and Assignment-Name “*-S-*”
Cobol – File Access
Search for Main Program “DSN8*” and Assignment-Name “*-S-*”

28. “File access” shows all file operations
Cobol – File Access
“File access” shows all file operations

29. Cobol – File Access Right mouse click e.g. to show JCL DD statements
(XINFO’s JCL scanner is needed)

30. DSN and other JCL-parameters
JCL – DSN
DSN and other JCL-parameters

31. Select option 7 – DB2 Access
Cobol – DB2 Access
Select option 7 – DB2 Access

32. Question: Which programs are using DB2 table “VDEPT”?
Cobol – DB2 Access
Question: Which programs are using DB2 table “VDEPT”?

33. In case of "Type=Table" column "Object" shows the name of the table
Cobol – DB2 Access
SQL action
In case of "Type=Table" column "Object" shows the name of the table
Programs

34. Search for Main Program “DSN8CC2”
Cobol – DB2 Access
Search for Main Program “DSN8CC2”

35. All used columns are shown
Cobol – DB2 Access
All used columns are shown

36. Search programs by “used columns”
Cobol – DB2 Access
Search programs by “used columns”

37. The column “DEPTNO” is used in several tables by several programs
Cobol – DB2 Access
The column “DEPTNO” is used in several tables by several programs

38. Select option 11 – Variable Declarations
Cobol – Variable
Select option 11 – Variable Declarations

39. Cobol – Variable
Question: In which programs is the variable “DEPTNO” defined?

40. Cobol – Variable Left double mouse click shows the complete record
In this example “DEPTNO” is defined in two programs

41. Cobol – Variable
The details of the record

42. Cobol – Variable usage

43. Cobol – Variable usage
“Variable usage” shows exactly “where and how” variables are used in your programs.

44. Right mouse click to browse the “Member with Var-Ref”
Cobol – Variable usage
Right mouse click to browse the “Member with Var-Ref”

45. Cobol – Variable usage
The result

46. Example: Search for all “EXEC CICS” in programs “DSN8C*”
Cobol – CICS Access
Example: Search for all “EXEC CICS” in programs “DSN8C*”

47. Cobol – CICS Access
“CICS Access” shows all CICS actions and the parameters.
LINK and XCTL is shown in the call table as well as in the call graph

48. Cobol – DLI Access
Search for DLI calls

49. Cobol – DLI Access Search for strings in DLI statements
IMS actions and parameters.

50. Cobol – Unused Code

51. Cobol – Unused Code Shows program lines that are never called Program
From line, to line

52. Cobol – Comments
Comment
Program
Division
Line

53. Search for strings, e.g. “*CICS*” in all comments
Cobol – Comments
Search for strings, e.g. “*CICS*” in all comments

54. All comments with “*CICS*”
Cobol – Comments
All comments with “*CICS*”

55. Any questions about XINFO and Cobol?
Yes?

56. Many thanks for your attention!