Thursday, October 10, 2019

Additions to RPG in new TRs

rpg enhancements to ibm i 7.4 tr1 and 7.3 tr7

On Tuesday I wrote about the new additions to Db2 for i in the latest Technology Refreshes, IBM i 7.2 TR1 and 7.3 TR7. Today I bring you the additions to the RPG programming language.

Barbara Morris, lead developer for the RPG compilers at IBM, published a blog in the RPG Cafe part of the IBM Community website. In this blog she introduces us to the three additions coming with these TRs:

Wednesday, October 9, 2019

Putting multiple SQL Selects together to make one row

multiple sql select statements within 1 select statement to make a single row

I was working with one of the Tech Support guys at work putting together bits of information into a one row of data that would allow him to display information on any IBM i partition. This is not something I had done before, and after a little while "playing" I had a statement that put bits of information from different sources together into one row.

I am sure we are familiar with using a Select to get information from a table/file, or perhaps join tables/files together, to get the results. But they are always related, with columns/fields that can be used to link the tables/files together. In this scenario I am running several independent Select statements, each producing one row of results, I want to combine into one. The information want is:

  1. Partition name
  2. Date and time
  3. Default CCSID, from system value
  4. Number of spool files in QEZJOBLOG output queue
  5. Model number
  6. Release of IBM i

Tuesday, October 8, 2019

Db2 enhancements in IBM i 7.4 TR1 and 7.3 TR7

ibmi 7.4 tr1 and 7.3 tr7

It is a good job I checked the pages for the new Technology Refreshes today as they now contain data, and I can find announcement documents too. But there has been no fanfare on platforms like Twitter that I would have expected.

It would appear that the two TRs contain the same Db2 for i enhancements. Just having a quick look I can see several I am very interested in trying:

  • Views to see which modules and service programs and bound to programs
  • Db2 services for data queues
  • Db2 services for the IFS
  • A way to use SQL to write directly to the job log

In other words lots of good stuff to play with and write about in the future.

Thursday, October 3, 2019

Waiting for the new TRs

waiting for new trs

It is now October, and I am impatiently waiting for the new Technology Refreshes for IBM i.

In previous years the announcement had been made in August or September for the second round of the biannual TRs. This year we are still waiting.

Pages were added to the IBM Community wiki on September 29, which makes me think it cannot be too long before the announcement is made.

You can find the pages here...

As soon as the announcements are made you will be able to read about them here.

Wednesday, October 2, 2019

Getting database relationships using SQL

get list of dependent objects for a file using sql

I was asked if it was possible to get the same information that is shown using the Display Database Relations command, DSPDBR, via SQL. You can generate an output file using the DSPDBR command, but that was not what was wanted.

There is a Db2 for i view SYSVIEWDEP which returns the dependencies of a view to its "parent". But it just contains only SQL views and indexes, no information for logical files. As I work in an environment where there are thousands of logical files in the ERP application this view does not give the dependency information I needed.

If the information is available via a command it must be contained somewhere within the IBM i operating system. In this case the dependency information is in the file QADBFDEP in QSYS.