blog.csdn

MySQL表操作全解析：ALTER TABLE、索引与生产级大表变更

这个操作看起来很简单，实际上背后有不少门道。MySQL 8.0之前，ALTER TABLE ADD COLUMN在很多情况下会触发表重建，相当于把整张表数据重新拷贝一遍。表越大耗时越长，期间对这张表的写入操作基本会被堵住。
TechTarget

Oracle Fusion Claw the new grab for fully autonomous agentic AI in ERP

Learn about new Oracle Fusion Claw agentic AI applications and understand how execution runtime software enables the AI to produce outcomes set by the user.
TechCrunch

Oracle sends force majeure notice on its New Mexico Stargate data center

Oracle has sent a force majeure notice to the developer of Project Jupiter, a Stargate data center campus in New Mexico, Bloomberg first reported Thursday. Force majeure clauses, common in energy and ...
science

Nucleosynthetic constraints on the origin of Bennu and CI-like asteroids

Isotopic values are averages of repeats. Uncertainties are given in 2 SE (SE = SD/√n). Each number refers to a separate digestion; aliquots carrying the same symbol originate from the same digestion.
ceoworld.biz

Tools for the Times: Frameworks to abandon, alter, and add for strategy and growth through uncertainty

One common word pervades all forecasts right now: volatility. This begs the question, if we are leading strategy through a volatile environment, are we equipped with the right strategy frameworks to ...
blog.csdn

Oracle表碎片整理方法（alter table move）操作总结

原创 最新推荐文章于 2026-09-24 15:12:21 发布 · 379 阅读 Oracle 表在经历大量 INSERT、DELETE、UPDATE 操作后，数据块中会产生大量"空洞"。这些空洞是被删除数据腾出来的空间，但它们没有被有效回收 ...