Overview:  Not all databases are the same. Consider scalability, speed, and data type support before deciding.High-end ...

Because the DBaaS has lately become AI-tastic, among other things It's less than two years since MariaDB spun out SkySQL, but ...

为什么数据库优化如此重要？在编程职业生涯中，80%的性能问题都源于数据库。一条慢SQL可能让整个系统瘫痪，而合理的硬件配置能让性能提升10倍以上。数据库性能优化金字塔模型总结了一个"性能优化金字塔"，从上到下分别是： 应用层优化 (10-20%提升) ...

在查询数据时，有时候需要把数据进行累加查询，但希望从SQL中一次性把数据查询出来，今天给大家分享一下三种累加的方法。1.子查询，这种方法是比较常见的，特别是在MySQL 不支持开窗函数的时候，用到的比较多SELECT A.OrderDate,( ...

My client based in Cape Town is currently looking for a Senior Oracle Developer to join them in a permanent role. IT / Finance Responsibilities Implement high-quality software solutions that meet ...

里氏替换：子类能直接替掉父类用。比如父类是 “鸟”，子类 “麻雀” 能飞，但若子类是 “企鹅”（不会飞），就别继承 “鸟”，不然用的时候会出问题。

As similar to global trends, Artificial Intelligence (AI) is also eating job openings in Pakistan's tech industry that have seen a noticeable decline ...

Where is Kelly Ripa Today? Jackie Tohn Joins Mark Consuelos To Guest Host ‘Live with Kelly and Mark’ Story by Alex Vena • 52m ...

Harshvardhan Rane has completed the Son Doong Cave Expedition, becoming one of only 100 Indians to do so.  ...