Negative stock and lost updates in a Postgres transaction
Stock goes negative even though the code is wrapped in a transaction. Or a stocktake finds less physical stock than the system shows. Nothing appears in the err…
Englishdev.to Database
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Preventing PostgreSQL Deadlocks on Order Items Tables Under High-Concurrency E-Commerce Loads
Architecture Summary : During concurrent checkout spikes, concurrent transactions updating inventory and inserting into order_items in non-deterministic order l…
Englishdev.to Database
CRM Field Mapping: Decide Who Owns Each Value
By JC TechLabs Connected records. Clear ownership. CRM field mapping is more than pairing two column names. It defines what a value means, which system may chan…
Englishdev.to Database
The Azure CLI Extension That Doesn't Exist — And Is Probably in Your SAP Runbook
We run SAP AI Lab — two of us, one in ML systems, the other in enterprise information systems. We're independent and not affiliated with SAP or Microsoft, which…
Englishdev.to Database
Data Lakes vs Data Warehouses vs Data Mesh
Drowning in Data? Let's Sort Out Your Swamp: Data Lakes, Warehouses, and the New Kid on the Block, Data Mesh! Hey there, fellow data adventurers! Ever feel like…
Englishdev.to Database
Offline POS: store stock as a ledger, not a counter
Here is a stock bug that throws no error, passes every single-device test, and still loses inventory. The counter model The obvious model is a number on the pro…
Englishdev.to Database
Group and session filters checked the column name, profile filters didn't: ClickHouse SQL injection in OpenPanel (CVE-2026-88890)
TL;DR What: OpenPanel 's analytics API builds ClickHouse WHERE clauses from the filters a caller sends. Group and session filters map the column name through an…
Englishdev.to Database
SQL for Beginners: Ask Your Database Any Question in Plain English-Like Queries
SQL is the language for talking to databases. Almost every app you use stores its data in a database, and SQL is how developers ask for that data, add new recor…
Englishdev.to Database
Fivetran vs Estuary for Postgres to Snowflake Replication
Estuary is the pick for Postgres to Snowflake replication when you need Snowflake freshness below one minute. It is also the pick when the bill must follow capt…
Englishdev.to Database
AI signals this week (2026-11-02 to 2026-11-08): what actually moved
Every day I collect AI signals from public sources for Signals 4 — a free daily digest of 4 items, one per core source. This is what the week looked like in the…
Englishdev.to AI
Decision Archaeology: Why Decisions Die in Codebases and How an LLM Agent Fixes It
A script to update user emails was approved, deployed, and broke login in production. The root cause was clear within an hour. What nobody could answer was: why…
Englishdev.to AI
181 classes, 278 predicates: I counted Apple's family graph
181 classes, 278 predicates: I counted Apple's family graph Apple's on-device knowledge graph speaks in 181 entity classes and 278 predicates. I counted every r…
Englishdev.to AI
I Built an Online Image Toolkit in 3 Days with AI — Here’s What I Learned
I’ve always found image processing tools frustrating. Either they’re bloated with features I never use, require installing desktop software, or hide basic funct…
Englishdev.to AI
Oracle or tool
A friend asked me for advice recently. She loves AI and uses it a lot, mostly for drawing and writing. This time she wanted ChatGPT to put together a diet plan.…
Englishdev.to AI
The 11 CMS SEO Features Every Platform Should Include in 2026
A CMS can make routine SEO either a manageable editorial task or a continuing queue of developer requests. A new practitioner-focused checklist from Search Engi…
Englishdev.to AI
92 hex colours in our emails, eight distinct greys, and not one line telling the client it is a dark email
Notifio watches rental listing search pages from your own machine and emails you the moment a new listing appears. The email is the product: a listing that goes…
Englishdev.to CSS
What Actually Makes a Business Website Convert Local Search Traffic
Many local businesses pay for a website that looks fine in a screenshot, yet produces almost no inquiries. The problem is rarely the logo. More often the site f…
Englishdev.to CSS
748 of the 1,250 rules in our stylesheet match nothing on any public page
Open any page of our marketing site, for example the quiz hosting guide , open the console and paste this: const sheet = [... document . styleSheets ]. find ( s…
Englishdev.to CSS
Transformez votre programme CoddyRun en page web !
🌐 Transformez votre programme CoddyRun en page web ! Un jeu, une animation, un exercice… En quelques clics, l'outil "Construire la page web" le transforme en un…
Englishdev.to CSS
Same setup, seven clouds: server and database prices compared
Originally published on moveinfra.eu . For a standard European production setup, public list prices on EU-owned cloud providers come out about 34% to 57% lower …
Englishdev.to AWS