A database management system (DBMS) is the technology for creating and managing databases. DBMS is a software tool to organize (create, retrieve, update, and manage) data in a database. A datum is a unit of data. Meaningful data combined to form information. Hence, information is interpreted data - data provided with semantics. The main aim of a DBMS is to supply a way to store up and retrieve database information that is both convenient and efficient. By data, we mean known facts that can be recorded and that have embedded meaning.

This book is about the different types of database management systems and security issues of databases and networks. We will take the Oracle database to elaborate with a detailed discussion on the base of RDBMS and other databases like NoSql, Mobile database, and open-source database. Oracle has transformed the landscape of data management to a very high standard. By itself, Oracle uses database tables to store any structured and unstructured data. However, it also stored a set of codes with business logic in the form of a trigger, procedure, function, etc. While this is a unique advantage,...

"Practical Guide to Software Engineering: Concepts, Design & Testing" offers a concise yet comprehensive overview of software engineering principles across the entire software development lifecycle. Spanning five chapters, it introduces foundational concepts, SDLC models (Waterfall, Spiral, etc.), and the importance of structured SRS documents. It explores system planning and design using modeling tools like DFDs, ERDs, and UML, emphasizing modular development through cohesion and coupling. The book underscores the value of clear documentation, categorized as internal and external, and...

"Practical Guide to Software Engineering: Concepts, Design & Testing" bietet einen prägnanten und dennoch umfassenden Überblick über die Prinzipien des Software-Engineerings über den gesamten Lebenszyklus der Softwareentwicklung. In fünf Kapiteln werden grundlegende Konzepte, SDLC-Modelle (Wasserfall, Spirale usw.) und die Bedeutung von strukturierten SRS-Dokumenten vorgestellt. Es untersucht die Systemplanung und den Systementwurf mit Modellierungswerkzeugen wie DFDs, ERDs und UML und betont die modulare Entwicklung durch Kohäsion und Kopplung. Das Buch unterstreicht den Wert einer...