Handling SQL error codes

[vargajb]

Signed-off-by: Janos Varga 113785741+vargajb@users.noreply.github.com

Proposed changes

Handling SQL error codes after the SQL statements.
If I compile the program without bind, the error message looks like this:

ERROR AT OPEN CUR1
 DSNT408I SQLCODE = -805, ERROR:  PACKAGE NAME DALLASC..CBLDB21.1B89E5800200F25A NOT FOUND IN PLAN Z91361. REASON 03
 DSNT418I SQLSTATE   = 51002 SQLSTATE RETURN CODE
 DSNT415I SQLERRP    = DSNXEPM SQL PROCEDURE DETECTING ERROR
 DSNT416I SQLERRD    = -251  0  0  -1  0  0 SQL DIAGNOSTIC INFORMATION
 DSNT416I SQLERRD    = X'FFFFFF05'  X'00000000'  X'00000000'  X'FFFFFFFF'  X'00000000'  X'00000000' SQL DIAGNOSTIC INFORMATION

If this modification is appropriate, I will also include SQL error handling in the other programs (CBLDB22.cbl and CBLDB23.cbl).

Fixes # (issue)

Type of change

What type of changes does your PR introduce to the COBOL Programming Course? Put an x in the boxes that apply.

• Bug fix (change which fixes one or more issues)
• New feature (change which adds functionality or features to the course)
• Translations (change which adds or modifies translations of the course)
• Documentation (change which modifies documentation related to the course)
• This change requires an update to the course's z/OS environment

Checklist:

Put an x in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This checklist will be used as reference for both the contributor and the reviewer

• I have read the Contributing Guideline
• I have included a title and description for this PR
• I have DCO-signed all of my commits that are included in this PR
• I have tested it manually and there are no regressions found
• I have commented my code, particularly in hard-to-understand areas (if appropriate)
• I have made corresponding changes to the documentation (if appropriate)

[tanto259]

Looks good to me! If you can add the error handling code to the CBLDB22 and CBLDB23, that will be great :)

[vargajb]

@tanto259

• I added the SQL error handling to the COBOL sources CBLDB22 and CBLDB23.
• I inserted the missing DD REPORT in CBLDB22R.jcl. In the documentation, I did not find that this file definition was intentionally missing from the job.

[tanto259]

Nice catch on the REPORT DD statement missing there.

Thanks, @vargajb!