Author: Carter

# Introduction Most people concentrate on crafting SQL that “functions correctly,” but hardly anyone verifies whether it will continue functioning properly the next day. Even a single additional row, a modified assumption, or a code reorganization can cause a query to fail without any obvious indication. This guide presents an end-to-end process for handling SQL the way software engineers do: keeping it under version control, testing it thoroughly, and setting up automated checks. We’ll work through an actual Amazon interview challenge that asks you to identify customers who spent the most each day. Afterward, we’ll transform the SQL into a…

Key points:Bitcoin’s surge past $79,500 now sets the stage for a potential climb toward $84,000.Ether, Dogecoin, and Hyperliquid are showing signs of strength, though other leading altcoins have yet to gain momentum.Bitcoin (BTC) kicked off the new week with a push above $80,500, signaling that buyers are trying to seize control. Market watchers are closely monitoring the $80,000 mark, as a failure to hold above it could spark a drop toward $60,000.That said, crypto analyst Matthew Hyland noted in a post on X that traders predicting BTC’s fall to $60,000 or lower “will be the same ones turning bullish late…

Running large-scale transformer models for training or inference is essentially a challenge of managing available GPU memory. Each GPU in a cluster has a fixed VRAM capacity, and as both model sizes and context windows continue to expand, engineers are forced to carefully balance how computational workloads are distributed across hardware. A novel approach proposed by Zyphra, known as Tensor and Sequence Parallelism (TSP), provides a fresh perspective on these trade-offs — and in benchmarks scaling up to 1,024 AMD MI300X GPUs, it consistently achieves lower peak memory usage per GPU compared to any conventional parallelism strategy, for both training…

In April 2026, a total of 33 mergers and acquisitions tied to cybersecurity were made public. To explore a comprehensive overview of the over 420 deals announced throughout 2025, visit SecurityWeek’s yearly M&A report. Below are several of the most notable cybersecurity M&A deals from April 2026: Airbus to acquire Quarkslab Airbus has signed a deal to purchase Quarkslab, a cybersecurity firm established in 2011 in France, with a workforce of around 100 people. The financial details of the transaction remain undisclosed. This move aligns with Airbus’s wider plan to strengthen Europe’s sovereign cybersecurity infrastructure. Quarkslab’s flagship product, QShield, is…

A new report out from George Washington University’s Milken Institute School of Public Health shows that the vast majority of people who have private health insurance actually use the ACA’s free preventive care. The law requires that most private insurance providers and group health plans have to pay for certain preventive services, with zero costs being passed on to the patient. The goal here is to drastically widen access to preventive care, covering key check-ups (like cholesterol and blood pressure), cancer screenings, immunizations, as well as many screenings and checks for pregnant individuals and children. And it would seem to…

Here’s the paraphrased version with easier-to-read text while keeping all HTML structure intact: The GSMA has revealed that MWC26 Shanghai will introduce the “Humanoid Robot Football Penalties Challenge,” a brand-new global robotics tournament. MWC Shanghai, one of Asia’s biggest and most significant technology and connectivity events, scheduled for 24-26 June 2026, will host this robotics competition designed to showcase embodied intelligence at a systems level. With global excitement for football building this summer, the challenge is set to unite teams from across the world for a penalty shootout-style contest, highlighting how cutting-edge connectivity and AI allow humanoid robots to make…

According to Ouster, the Rev8 OS series represents its inaugural lineup of patented sensors featuring point-by-point 3D color vision. Image: Ouster Today, Oster Inc. unveiled Rev8, its latest range of OS digital lidar sensors powered by the newly developed L4 Ouster Silicon. The company highlighted that these models come equipped with innovative patented native-color lidar sensors, offering twice the range and resolution compared to their predecessors. “The Rev8 lineup represents the most sophisticated lidar sensors ever launched, raising the bar in the sensing industry,” Oster CEO Angus Pacala remarked. “The introduction of the L4 Ouster Silicon fulfills the potential of…

Kayla Solino/ZDNETStay connected with ZDNET: Mark us as a favorite source on Google.I spend countless hours in front of a screen daily.Working from home as ZDNET’s deals and shopping editor means I frequently log irregular hours throughout the year—staying up late for major sales events like Prime Day, waking early for product launches in other time zones, and more. All this leaves my eyes strained from excessive screen time, blue light exposure, and intense writing and editing sessions.Also: 5 thoughtful last-minute Mother’s Day gifts your mom will truly appreciate—all currently discountedBecause of this, I was eager to find something to…

Between 1974 and 1986, the Golden State Killer carried out 13 known murders, more than 67 sexual assaults, and 120 burglaries across 11 jurisdictions in California — then vanished without a trace. His identity stayed hidden for over three decades until a groundbreaking investigative method finally brought him to justice. By combining forensic DNA analysis with genealogical research — a technique known as Investigative Genetic Genealogy (IGG) — we cracked the case, and I led the prosecution team that held him accountable. Since that breakthrough, law enforcement agencies worldwide have used IGG to solve more than a thousand cold cases.…

The strength of any AI model depends entirely on the knowledge base behind it. A well-organized, accurate knowledge base boosts both the speed and precision—two aspects where today’s models frequently struggle. Recent research even reveals that leading AI chatbots provide incorrect answers for nearly half of all user queries. In this guide, I’ll walk you through how to create a trustworthy knowledge base, including detailed steps and common pitfalls to steer clear of. 6 steps to build an effective knowledge base Steps to build a knowledge base | Image by author Following a structured method when building a knowledge base…