SQL often called Structured Query Language is a declarative and multi-paradigm language that is the domain-specific language used for designing and managing data models to organize the data in relational model databases. SQL was designed by Donald Chamberlin and Raymond Boyce. SQL first appeared in 1974. SQL is static typing and strong...

PL/SQL tutorial provides basic and advanced concepts of SQL. Our PL/SQL tutorial is designed for beginners and professionals.PL/SQL is a block structured language that can have multiple blocks in it.Our PL/SQL tutorial includes all topics of PL/SQL language such as conditional statements, loops, arrays, string, exceptions, collections, records,...

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Ansible and Chef are configuration management (CM) tools that help sysadmins and DevOps professionals manage a large number of servers. They excel at repetitive task automation, simultaneous deployment of apps and packages to a group of servers or configuration and provisioning of new servers from scratch. [contact-form-7 id="76417"...

Zero Defects is referred to as a philosophy, a mentality, or a movement. It aims to minimize the number of defects in manufactured products and services as much as possible. Let us understand the concept of Zero Defects. What does the concept of zero defect mean? Zero Defects is a term coined by Mr. Philip Crosby in his book “Absolutes of...

You might have seen the term come up a lot, especially when talking about a Work Breakdown Structure (WBS), and wondered to yourself what is a work package anyway? Well, a work package is a collection of similar tasks which are bundled together to create a kind of mini-project within a project. What defines a work package is the inter-relatedness...

iOS is a mobile operating system developed and distributed by Apple Inc. It was originally released in 2007 for the iPhone, iPod Touch, and Apple TV. iOS is derived from OS X, with which it shares the Darwin foundation. iOS is Apple's mobile version of the OS X operating system used in Apple computers. iOS architecture The iOS...

If you’ve ever applied for a project management position or looked into getting a project management certification, you’ve likely come across a requirement for “project management experience.” For example, consider that for a Project Management Professional (PMP) certification, PMI wants you to demonstrate at least 4,500 hours of...

Data modeling (data modelling) is the process of creating a data model for the data to be stored in a Database. This data model is a conceptual representation of Data objects, the associations between different data objects and the rules. Data modeling helps in the visual representation of data and enforces business rules, regulatory compliances,...

Informatica architecture is a comprehensive framework designed to manage, integrate, and process data across various sources and targets. It consists of critical components such as the PowerCenter Repository, PowerCenter Server, and PowerCenter Client tools. The Repository stores metadata and configuration information while the Server executes...