标签：#trans

The exec, Emad Dlala, has left just a few months after being promoted to SVP of engineering and digital, TechCrunch has learned.

EVs from GM will soon be able to top up at more kinds of public chargers.

GM is developing an entirely new sodium-ion battery chemistry for use in everything from data centers to its own factories.

Voice translations preserve speaker's tone, pacing, pitch—with SynthID watermarks for security.

Imagine a simple money transfer scenario. John sends money to his friend Sarah. The system successfully deducts money from John's account, but before it can credit Sarah's account, the application crashes. Without proper safeguards, John's money would disappear from the system, creating inconsistent and unreliable financial records. To prevent this type of problem, database transactions are used. Transactions ensure that a group of related database operations either complete successfully together or fail together. If any part of the process encounters an error, all changes are reverted, ensuring that the database remains consistent. Transactions make database operations atomic. Atomicity means that all operations inside a transaction are treated as a single unit of work. Either every operation succeeds and is committed to the database, or all operations fail and are rolled back. Partial updates are never permanently stored. A database transaction is a group of one or more database operations executed as a single unit. Either all operations succeed together or all operations fail together. This guarantees database consistency even if an application crashes, a network failure occurs, or an unexpected error is encountered during execution. It is important to understand that a transaction is not simply a single database query. While individual queries such as save, update, or delete interact with the database, a transaction wraps multiple queries inside a controlled all-or-nothing boundary. This prevents partial updates and ensures data integrity throughout the process. Prerequisites Before starting, make sure you have the following: Basic knowledge of NestJS Basic understanding of TypeORM Basic knowledge of PostgreSQL Understanding of basic database operations (save, update, delete) in TypeORM Project Setup In this article, we will create a simple NestJS application to demonstrate the importance of transactional queries when multiple database write or update operations

Founder and CEO RJ Scaringe has called it "maybe the most important thing we've launched to date."

It's not perfect, but Rivian's latest shows this company is playing for keeps.

Rivian may be all in on robotaxis and autonomy, but it's still got human drivers - and EV buyers - to win over. The pricey R1S SUV and R1T pickup brought Rivian A-list media attention and cult-hit status, but the company faces a critical next step. The 2027 R2 is Rivian's bid for mainstream success, […]

Netflix engineer Casey Bleifer shares how to achieve rapid, automated code changes across a massive, diverse software fleet. She discusses building an event-driven orchestration platform using composable, Lego-like steps, and explains how Netflix utilizes automated canary validation, compliance checks, and a custom "confidence metric" to eliminate the long tail of manual engineering migrations. By Casey Bleifer

The startup is one of many entering the RV space, but it's banking on a hybrid power system that can go far beyond campsites.

Donut Lab's solid-state battery claims have been thoroughly debunked by Ryan Inis Hughes on his popular Ziroth YouTube channel. According to Hughes, Donut Lab has engaged in deliberate, calculated deception by claiming to have a solid-state battery ready for mass production. In reality, it's nothing more than a standard lithium-ion design. Hughes' investigation got an […]

Waymo has acquired a massive 5,500-acre proving ground in Arizona owned by Route 14 Investment Partners LLC, a Delaware shell company associated with Apple, according to documents filed with Maricopa County.

I've said one and mean another, and I've used one when I needed another. Please bear with me as I note the similarities and differences between scroll-driven animations, scroll-triggered animations, container query scroll states, and view transitions for my future self. Scroll-Driven, Scroll-Triggered, Scroll States, and View Transitions originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.

Uber is getting ready to put robotaxis on London's streets, opening an interest list for riders who want to be among the first to hail one of Wayve's autonomous vehicles when the service goes live later this year. The rollout would be a milestone in one of Uber's biggest markets and an early test of […]

Uber customers in the UK can now join an interest list to increase their chances of being matched with a Wayve robotaxi.

Martin Kleppmann discusses the urgent need for technological sovereignty in modern infrastructure. Exploring the shifting landscape of global tech dependencies, he shares how engineering leaders can leverage multi-cloud architecture, de facto API standardization, the AT Protocol, and local-first development paradigms to reclaim user agency and build highly resilient systems. By Martin Kleppmann

Senior Solution Architect Viktor Vedmich shares how engineering leaders can maximize application performance using Valkey. He discusses the open-source Redis fork's 100% API compatibility, explores advanced caching strategies like lazy loading, and explains how to implement powerful data structures for real-time analytics, rate limiting, and session stores to solve the thundering herd problem. By Viktor Vedmich

Welcome back to TechCrunch Mobility — your central hub for news and insights on the future of transportation.

GM wants to slash EV prices by deploying new battery tech up to a year earlier than planned. This building is key to making that happen.

Lectric, which says the U.S. market is ripe for competition and choice, has launched three new brands in the past six months.