MAKE IT WORK.
WRITE IT DOWN.
Notes from a developer who writes ABAP on real SAP systems and hands that work to agents. Art, travel, the economy and books live next door.
SAP Transport Requests and Tasks: Why Is a Released Change Missing from Production?
Task release, request release and export, and target-system import are separate SAP CTS stages. A hypothetical Workbench example shows what to check before reporting that a change has reached production.
Notes worth keeping117
Does the table edge in a Cézanne still life carry on under the cloth?
Follow the front edge of the table in four still lifes Paul Cézanne painted between about 1877 and 1894, and watch a scene seen from one spot turn into a set of surfaces seen from several.
I added it to .gitignore, so why does Git keep committing it?
A file that is already committed stays tracked even after you list it in .gitignore. Checked with git 2.54.0: two commands that show why a file is not ignored, and what rm --cached does to history and to a teammate’s copy.
Hamlet: Where Does His Revenge Stop, and Where Does It Rush?
A reading guide to Shakespeare’s Hamlet, volume 3 of Minumsa’s World Literature series: the text behind Choi Jong-chul’s translation, the five acts, Laertes and Fortinbras as mirrors, and how to read the scenes where Hamlet stops beside the ones where he rushes.
If 100 million won of demand induces 180 million of output, does GDP grow that much?
Korea's 2024 production inducement coefficient is 1.808, but the value added coefficient is 0.759, because output counts intermediate inputs again and again. See why value added and imports always add up to 1, and recompute 1.808 yourself from the Bank of Korea's tables.
Why Are Both Debit and Credit Totals Up After an FB08 Reversal?
After an FB08 reversal the balance is zero, yet both debit and credit totals have grown. A fictional example shows why, when a negative posting undoes the totals too, and four cases where FB08 stops.
Can You Rely on the Row Order of a SELECT Without ORDER BY?
Without ORDER BY, the row order of a SELECT result is not promised. Using a fictional price table, this note walks through SELECT SINGLE with an incomplete key, UP TO n ROWS without ORDER BY and BINARY SEARCH on an unsorted table, and how to fix each.
Where does a leaf end in Corot’s trees?
Trace the outlines of trees in four landscapes Camille Corot painted across nearly fifty years, and watch the edge of the foliage change from a line that divides forms into a mass that dissolves into light.
Why did a field vanish from the JSON I sent?
JSON.stringify drops undefined properties, turns NaN into null and Map and Set into empty objects, all without an error. A run in Node 24 against a local server shows what the server actually received, and a small function turns those changes into errors.
Metamorphoses, Volume 2: Where Does Myth Become History?
A reading guide to volume 2 of Ovid’s Metamorphoses in Minumsa’s World Literature series: how Books 9–15 move from Hercules down to Rome, the songs of Orpheus, and the final transformation, which ends in the poet’s own name.
Export prices fell 3.7%. Why did the terms of trade improve 1.5%?
In August 2026 Korea's won-based export prices fell 3.7%, yet the net barter terms of trade rose 1.5%. The exchange rate cancels out in a ratio, and the terms of trade use dollar prices at customs time. Recompute 119.90 yourself from the Bank of Korea's tables.
What Happens to the WHERE Condition When FOR ALL ENTRIES Gets an Empty Table?
When the driver table of FOR ALL ENTRIES is empty, the entire WHERE is ignored, date conditions included. A fictional example covers where the guard goes, what the result table holds when it stops the query, and the duplicate removal that shrinks totals even when the table has rows.
Four of its six components are below 100. Why is consumer sentiment 106.6?
Korea's consumer sentiment index was 106.6 in September 2026, yet four of its six components were below 100. In a single CSI, 100 is where replies balance; in the CCSI, 100 is the long-run average since 2003. A fictional 100-household example and a recalculation from ECOS data show the difference.