User:PoC

I am the principal maintainer of this Wiki.

Missing

This is a list of things I search for:

• COBOL LPPs for V3R2 in ENU (2924)
• Secondary Language Media German (2929) for V4R5
• The LPP for the IBM Gopher server and 5250 based client (https://es.wikipedia.org/wiki/Gopher)
• The LPPs for DAL (https://en.wikipedia.org/wiki/Data_Access_Language)
• The (non-cumulative) PTFs for OS/400 V2R3, bringing AppleTalk support to OS/400:

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Before you configure your Apple Macintosh to connect over AppleTalk, you need to install the following PTFs on the AS/400:

• MF06411
• MF06412
• SF14158
• SF14614
• MF06396
• MF06332

These PTFs will not be shipped in a cumulative package, and we advise that you check for any later PTFS that were released after publication of this book.

Cited from Chapter 8 of Using Apple Macintosh with the AS/400, GG24-4071-00, March 1994.

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Unofficial Benchmarks

For getting a rough idea about CPU speed, I have a physical table about German ZIP codes, including long distance telephone prefixes, filled with nearly 20,000 records in six fields, summing up to 2.25 MiB of data. From the original source in the internet, there were a lot of duplicate records. Birgitta Hauser came up with a quick and dirty idea how to eliminate these dupes.

Since the SQL proved to be running really slow, I came up to use it as a benchmark. Of course, it's not 100  fair, because of different OS releases and accompanying improvements in SQL handling. But it gives a rough idea.

The SQL was run from a source PF member as standard batch job (default parameters) on idling machines (no additional work).

Machine	Proc. Feat.	OS	Runtime (ca.)	Comments
9401-150	2270	V4R5	About 118 hrs.
9406-S20	2161	V4R4	About 13.5 hrs.
9406-800	7408	V5R2	About 2 hrs.
8203-E4A	5587	V7R2	1-2 Minutes	LPAR with two CPU cores assigned.

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Used files

• DDS for the database as follows:

A                                      UNIQUE
A          R PLZTBL
A            ORT           32A
A            LAND          17A
A            VORWAHL        6A         ALWNULL
A            PLZ            5A
A            ID             5S 0
A            ZUSATZ        30A         ALWNULL
A          K ID

• SQL for RUNSQLSTM as follows:

DELETE FROM PLZPF A
 WHERE A.ID = (
  SELECT MAX(ID) FROM PLZPF
   GROUP BY ORT, LAND, VORWAHL, PLZ, ZUSATZ
   HAVING COUNT(*) > 1 AND MAX(ID) = A.ID)

• Submit Command for RUNSQLSTM as follows:

SBMJOB JOB(DLTPLZDUPS) CMD(RUNSQLSTM SRCFILE(PLZ/SOURCES) SRCMBR(DLTDUPS) COMMIT(*NONE) NAMING(*SQL) DFTRDBCOL(PLZ))

I can provide a save file of the whole library on request.

The switchback to the traditional CQE SQL Engine involves creating a copy of QSYS/QAQQINI, updating this copy through SQL, SQE_NATIVE_ACCESS.

Weblinks

• Creating a QAQQINI File
• Change Query Attributes for using the desired QAQQINI file
• QAQQINI File Format

Message handling table

This is related to the QMHSNDPM API.

When trying out these things, it's important to have some calls to sleep() in the application, so the 5250 display logic does not merge away the brief write request.

Type	Destination	Result
		Interactive	Batch
*DIAG	*PGMBDY, Call Stack Counter 0	Message is put into the job log	Message is put into the spool file, sev 40
*INFO
*STATUS		No result
*COMP		Message is put into the job log	Message is put into the spool file, sev 40
*DIAG	*PGMBDY, Call Stack Counter 1	Message is put into the job log, and shown in the message line	Message is put into the spool file, sev 40
*INFO
*STATUS		No result
*COMP		Message is put into the job log	Message is put into the spool file, sev 40
*DIAG	*EXT	Message is put into the job log	Message is put into the spool file, sev 40
*INFO		Message is shown in a separate screen, like RPG's DSPLY
*STATUS		Message is shown in the Message Line	No result
*COMP		No result	Message is put into the spool file, sev 40