We share common IT technologies (Java, Web, SQL, etc.) and practical applications of emerging software development techniques. New articles are posted daily. Follow IT Xianyu to stay ahead in tech. The IT Xianyu series is being regularly updated.
GPT‑5.6 boosts evaluation scores by 10‑15% while cutting token usage 41‑66% and costs up to two‑thirds, introduces ChatGPT Work that autonomously handles end‑to‑end tasks, and offers three model tiers (Sol, Terra, Luna) that let users choose performance versus price, fundamentally changing how we prompt AI.
The article compares GPT Plus and ChatGPT Pro, explaining how usage intensity, task complexity, and delivery stability determine which subscription is appropriate for programmers, freelancers, and anyone earning money with GPT.
The article shows how AI can replace tedious manual MySQL commands with generated scripts, walks through setting up a Docker Compose MySQL environment, demonstrates AI‑written SQL, performance tuning, backup automation, and highlights version‑specific pitfalls.
Over the past six months, AI models have raced through twelve major version updates, narrowing the US‑China performance gap to just 2.7%, while delivering impressive coding and reasoning abilities but still suffering from hallucinations, outdated knowledge, and uneven real‑world usefulness that ordinary workers feel daily.
This article walks through three common Oracle OCP exam questions—distinguishing permanent, temporary, and UNDO tablespaces, choosing the correct object versus system privilege syntax, and selecting the safest RMAN command for a hot backup—providing detailed explanations and the correct answers.
This guide explains where PostgreSQL’s main configuration file lives in both Docker Compose and native installations, how to edit it with Vim, modify common parameters like max_connections, reload the settings without downtime, and avoid common pitfalls.
Learn how to safely manage PostgreSQL transactions using DataGrip by understanding ACID principles, executing BEGIN, COMMIT, and ROLLBACK commands, handling errors, and applying practical tips for visibility, connection loss, and Docker deployments, all illustrated with step‑by‑step screenshots.
This guide walks you through using JetBrains DataGrip on AlmaLinux to connect to a PostgreSQL server, then demonstrates step‑by‑step how to insert, modify, and delete records via the graphical interface and optional SQL console, highlighting key settings and safety tips.
This guide walks you through installing Docker and Docker Compose on AlmaLinux, creating a concise docker‑compose.yml to run PostgreSQL in an isolated container, connecting with DataGrip, and managing the lifecycle of the database service with simple commands.
This guide explains why Redis is used as an in‑memory cache, its relationship to traditional databases, and provides detailed native and Docker‑Compose installation steps on AlmaLinux, plus instructions for connecting and managing Redis with DataGrip.
