This article provides interview‑style SQL examples that cover creating a sales table, computing year‑over‑year and month‑over‑month growth rates, and using various window‑function techniques to identify numbers that appear consecutively at least three times.
The article explains the widespread use of message oriented middleware, outlines its core challenges such as synchronous vs. asynchronous delivery, security, persistence, redelivery, ordering, and describes the two main transmission models—point‑to‑point and publish/subscribe—while comparing JMS and AMQP standards.
Enterprise information systems increasingly rely on integrating business processes, and this article proposes a novel approach that combines Service‑Oriented Architecture with Message‑Oriented Middleware, delivering a three‑tier MOM framework that enhances efficiency, reusability, cross‑platform support, and flexible configuration for seamless business workflow integration.
