DJ Adams

@qmacro

Developer Advocate at SAP. O'Reilly and SAP Press author. SAP community pioneer and SAP Developer Network co-creator. SAP Mentor Alumnus. Learner. Runner. Just another SAP Hacker. "Bulldog of logic". Opinions my own, and there are many of them.

196 Following651 Followers902 Posts

YouTube YouTube YouTube YouTube YouTube YouTube YouTube Website Bluesky

Is this your profile?Claim it and qmacro.dirty.social is yours.Claim profile

DJ Adams@qmacro· 28d

Stopped for a coffee in Mannheim while I wait for my train to Frankfurt airport, reflecting on a great #CodeConnect event this week. Best part - meeting #UI5, #SAPCAP and #HANA family friends old and new again. Safe travels back home, everyone!

Photo from an outside seat in the cafe part of SYTE hotel. Mannheim train station is in the near distance, past some large trees and the corner of a building. In the foreground is my laptop screen (showing lazygit in action), and a black coffee cup & saucer on a table with a white tablecloth. The sky is grey, holding a (welcome) large amount of rain that was deposited shortly after this photo was taken.

DJ Adams@qmacro· Jul 13

It was great to catch up with my good old friend @gregorwolf.bsky.social at the Fairway over breakfast this morning #CodeConnect

Me and Gregor smiling, in the breakfast room at the Fairway hotel

DJ Adams@qmacro· Jul 10

For an overview of the latest CAP major release - cds 10 (June 2026), we have a special extended news item in this week's SAP Developer News for you 👉 www.youtube.com/watch?v=rCaD... #SAPCAP

A still image from the SAP Developer News episode item showing me and the CAP release notes, and then a photo of me pointing at it, superimposed over the top.

DJ Adams@qmacro· Jul 8

Starting my journey for #CodeConnect in St Leon-Rot, DE next week. See you there? #SAPCAP #reCAP code-connect.dev

Selfie taken at a bus stop on a country road somewhere in West Cheshire. It's warm and dry, and a mid-morning sun drenches the countryside, which from the camera angle is basically small roads, bordered by trees and hedgerow, and fields in the distance.

DJ Adams@qmacro· Jun 22

We're into the final week of this month's SAP Developer Challenge, brought to you by the Developer Advocates. Grab a ☕️ and exercise your brain and reading skills for a few mins 👉 community.sap.com/t5/sap-cap-b... #SAPCAP #Learning

The list of questions, details of question 16, and me pointing at them.

DJ Adams@qmacro· Jun 19

We're at the end of week 3 of 4 in this month's SAP Developer Challenge, and you folks keep on reading and learning 🚀 Check out the analysis and questions so far, dig in to the stats service, and remember - it's not too late to start! 👉 community.sap.com/t5/sap-cap-b... #SAPCAP

A screenshot of the questions so far, grouped by week, and a link to the analysis post. Plus a photo of me, pointing to the screenshot.

DJ Adams@qmacro· Jun 15

As we start Week 3 of this month's Developer Challenge on CAP knowledge, we have a new question for Monday, but also a new analysis post that gives you some stats and even an OData service to peruse, on the questions and your responses so far. Dive in! 👉 community.sap.com/t5/sap-cap-b... #SAPCAP

A screenshot of the list of questions from the overview blog post, which now also has a link to the analysis post. There's a photo of me pointing to the screenshot too.

DJ Adams@qmacro· Jun 10

This month's Developer Challenge, brought to you by the Developer Advocates, is underway. Today we have question 08 (of 22 this month) and it's on the topic of CXL operators. Grab a ☕️ and spend 5 mins of your day improving your 🧠 and having a bit of fun 👉 community.sap.com/t5/sap-cap-b...

A screenshot of the list of questions so far:

Week 1
01 (Mon 01 Jun) Common types and aspects
02 (Tue 02 Jun) Content for common reuse types
03 (Wed 03 Jun) Declarative field control with @mandatory
04 (Thu 04 Jun) Namespaces, contexts and name prefixes
05 (Fri 05 Jun) Portable functions
Week 2
06 (Mon 08 Jun) Project specific configuration
07 (Tue 09 Jun) Authorization annotations
08 (Wed 10 Jun) CXL case-when-then operator

And a photo of me looking excited

DJ Adams@qmacro· Jun 9

A photo of the River Dee, facing north west, taken from the Higher Ferry Saltney Footbridge on my run earlier this morning.

The wide river stretches off into the far distance, straight as an arrow. It reflects the early morning blue sky which is heavy with clouds, some of them grey. Both banks are sloped and full of greenery.

DJ Adams@qmacro· May 15

🧠 Want to understand more about local-first development with CAP Node.js, powered by the excellent mocking facilities for data, auth, messaging and remote services? We have a new 4 part series of blog posts ready for you: qmacro.org/blog/posts/2... Share & enjoy! #SAPCAP

A screenshot of the series post, listing the individual posts on mocking data, auth, remote services and messaging, and a photo of me pointing at the screenshot

DJ Adams@qmacro· May 4

Greetings earthlings! I've just published the notes to part 6 of our recent series on CDS expressions in CAP with Patrice Bender. Grab a ☕️ (or two) and dive in. Lots of detail to learn from and expand our understanding, essential in today's AI age 👉 qmacro.org/blog/posts/2... #SAPCAP

Me pointing at the series post which lists the replays and episode notes

DJ Adams@qmacro· Apr 29

I'm honoured to be speaking at SAP Inside Track Wroclaw next month, a great event run by a vibrant and friendly community of practitioners. See you there! #SAPCAP #SAPCommunity

DJ Adams@qmacro· Apr 24

Happy Friday, everyone, esp. fellow narrowboaters #UKCanals

DJ Adams@qmacro· Apr 20

Current location 👍

A spring day, sunny but with some heavy clouds threatening a change in weather. The countryside (fields, trees, bushes) stretches out into the distance, split down the middle by the canal, flanked by the (dry!) towpath on the left. A handful of narrowboats are moored in the middle distance (mine is one of them).

DJ Adams@qmacro· Apr 13

Earlier this morning on my canal recce run, at the top of Hurleston locks. #UKCanals

A view from Hurleston Lock Nr 1, looking east. The sun is glowing hazily, still low-ish in the sky, there are no clouds, just a silver blue sky. The water in the pound below Lock 1 is absolutely still, no wind. The south bank of Hurleston Reservoir can be seen on the left, covered in grass which has recently been cut. There is mist rising in the middle distance, towards the bottom of the flight, along the tree line.

DJ Adams@qmacro· Apr 10

Catch up with today's Expert Session on CAP Node.js with Daniel Schlachter - deploying to Cloud Foundry in "hard mode" (part 3, green box), and get ready for next Friday where we go all in on upgrades (part 4, blue box)! #SAPCAP 👉 www.youtube.com/playlist?lis...

A screenshot of the Expert Sessions: CAP Node.js playlist, with 4 video thumbnails. The one marked part 4 (on upgrades) is highlighted in blue, and the one marked part 3 (on CF deployments - hard mode) is highlighted in green. There's a photo of me pointing at the screenshot.

DJ Adams@qmacro· Apr 8

Seems quite a while ago now (was a long day!) but here's an early morning shot looking east on the Wardle canal #UKCanals #Canal

Photo looking down a wide-ish canal, water has slight ripples but is otherwise still, showing the calmness of the early morning. The sun is up, hazy and distant but already with a warm glow over the fields to the canal side. There's an old (1930's-ish) working boat in the middle distance, moored and with smoke coming from the chimney, drifting to the north. The towpath is grassy and dry - heaven!

DJ Adams@qmacro· Apr 7

Notes to part 5 of our recent #HandsOnSAPDev series on CXL in CAP with Patrice Bender are now available. Lots of searchable detail for us to read and think about 👉 qmacro.org/blog/posts/2... Share & enjoy! #SAPCAP

Screenshots of a few "pages" of the detailed notes, with a photo of me standing and pointing.

DJ Adams@qmacro· Apr 6

Nice spot on the Wardle canal (aka Middlewich Branch of the Shropshire Union canal) #UKCanals #Canal

Photo from the stern end of NB FULLY RESTFUL, moored on a lovely grassy (no mud!) towpath, with armco, and flat fields stretching into the distance, where a (Avanti West Coast) train runs across a low-ish viaduct. The late afternoon sun lends a warm shine to the photo.

DJ Adams@qmacro· Apr 2

@pedant.blue what's going on here, I can't quite work it out from the UI. Are people blocking you as a result of your correction?

A screenshot of a "daylight saving" correction by Pedantic Peppermint, in reply to (?) something that now just says "Blocked".

DJ Adams@qmacro· Mar 27

Greetings earthlings! We've just published the detailed and searchable notes to part 4 of our recent live stream series on CXL in CAP. Share & enjoy! qmacro.org/blog/posts/2... #SAPCAP

A series of screenshots from the blog post representing the notes to part 4, with me pointing at them

DJ Adams@qmacro· Mar 24

I moved closer to the Bosley flight ready for my descent tomorrow and decided to moor here to make max use of the poor solar potential today. And wow, was that westerly wind (coming from the left of the photo) strong, the bow was blown into the reeds on the other side twice before I could tie up.

NB FULLY RESTFUL moored up alongside a relatively newly renovated part of the towpath, with plenty of grass verge and Armco on the bank. The sky is steel blue and there's a new barbed wire fence through which the wind was howling and blowing the boat away from the towpath.

DJ Adams@qmacro· Mar 23

Notes to part 3 of our recent series on CXL in CAP with Patrice Bender are now available - lots of searchable detail for your reading & learning pleasure. All links from the series post 👉 qmacro.org/blog/posts/2...

A screenshot of part of the series post, with part 3 highlighted, and an arrow from the "notes" link pointing to screenshots of various sections of the notes for that part. A photo of me in the corner pointing excitedly, too.

DJ Adams@qmacro· Mar 11

I need to write more clickbaity titles like this :-) Shifting left *and* down is where it's at localhost:5005/blog/posts/2...

An ASCII-art diagram showing 4 layers:

Category: CDS
- Definition of services
- Domain model definition
Category: JavaScript, Java
- Custom logic
Category: SQL
- Database

Coming out of the Custom logic layer, there are two arrows:

- one going left and up, with the text "push up"
- one going left and down, with the text "push down"

DJ Adams@qmacro· Mar 9

Greetings! Detailed & searchable notes to part 2 of our recent #HandsOnSAPDev series on CXL in CAP are now available: https://qmacro.org/blog/posts/2026/03/09/cds-expressions-in-cap-notes-on-part-2/ #SAPCAP Share & enjoy!

screenshots of various pages of the notes, with a selfie of me pointing at them

DJ Adams@qmacro· Mar 6

I used to attend & often speak at O'Reilly's Open Source Convention (OSCON) back in the day, mostly on SAP topics, and ran a 640 mini SAP system on this tiny Sony Vaio C1 laptop which had no more than 256MB RAM. I had tuned the central instance parameters right down, but it still swapped like crazy.

Me grinning at the camera, sitting at a conference table in my OSCON tshirt and shorts, working on a tiny laptop with a PCMCIA WiFi card sticking out of the side.

DJ Adams@qmacro· Mar 5

We've started to publish notes for our recent series on CXL in CAP with Patrice Bender. Video chapter links & all the examples so you can search & recall. Notes to part 1 out now, linked from the series post https://qmacro.

A screenshot of the series post, with a red arrow from the new "notes" link pointing to a screenshot of a couple of pages from the post which has the notes to part 1 of the series. Also a selfie where I'm wearing winter gear and pointing upwards at the arrow.

DJ Adams@qmacro· Mar 4

Lovely. To accompany this, here's a photo I took this on my run this morning, looking west over the Cheshire plain from the Middlewood Way.

Photo of an early morning landscape with a steely purple sky, a full moon in the distance, and meadows rolling from the foreground to the middle distance where woodlands start. There's a large old (oak?) tree in the right foreground, with ever shrinking branches that look like the capillaries in a lung.

DJ Adams@qmacro· Mar 3

Our CDS expressions in CAP mini-series has finished, but we're continuing soon the CAP Node.js Expert Session series with Daniel Schlachter, with part 2 on deploying to Cloud Foundry. Watch out for the announcement of the premiere on the SAP Developers YT channel later this month! #SAPCAP

The Expert Session thumbnail, showing a photo of me and Daniel Schlachter, with the text:

Deploying to Cloud Foundry
CAP Node.js
Expert Session

and the number 2 (for part 2) in a circle.

DJ Adams@qmacro· Mar 3

New post: "Genres, cuids and a bit of AWK " - Using AWK to process the Genres data from the CAP bookshop sample 👉 #AWK #SAPCAP https://qmacro.org/blog/posts/2026/03/03/genres-cuids-and-a-bit-of-awk/