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  • SQL INSERT, UPDATE, DELETE — Oh My!

    SQL INSERT, UPDATE, DELETE — Oh My!
    by Rebecca McKeown

    SQL INSERT, UPDATE, and DELETE statements — what are they all about? If you’re a data engineer, a database administrator, or even just your average data fanboy or... More

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  • Why Use SQL Over Excel

    Why Use SQL Over Excel
    by Shanika WIckramasinghe

    SQL is replacing Excel in many fields, and data analysis is certainly one of them. If you are still using Excel as a data analyst, you are missing something very... More

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How to Generate and Use CRUD Stored Procedures in SQL Server

How to Generate and Use CRUD Stored Procedures in SQL Server
by Jordan Sanders

Most database systems operate on the basis of 4 of the simplest data manipulation operations that are called by the acronym CRUD. This acronym stands for CREATE, READ, UPDATE, and...

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Include With Where Clause

Include With Where Clause
by Muhammad Adil Malik

Ever thought about writing the following query in Entity Framework? SQL xxxxxxxxxx 1   1 Select * From Employees e 2 left join Employees_Attendance ea on e.id=ea.employee_id and...

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Understanding Cloud Computing

Refcard #082

Understanding Cloud Computing

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Design Patterns
Building Maintainable and Scalable Software
Learn design patterns quickly with Jason McDonald's outstanding tutorial on the original 23 Gang of Four design patterns, including class diagrams, explanations, usage info, and real world examples.
Jason McDonald
242.2k 840.2k
Core Java
A Power-User's Guide to Java
Gives you an overview of key aspects of the Java language and references on the core library, commonly used tools, and Java 8 features.
Cay Horstmann
152.3k 463.7k
Getting Started With Git
The De Facto Standard for Version Control
Today, Git is effectively the de-facto standard for software version control, and it is truly an expected tool in every developer’s toolbox. This quick overview demonstrates what a rich and deep DVCS Git truly is, while still being approachable for the newcomer to this collaborative approach to source code and version control. Download this Refcard to learn about the essentials of getting started with Git like cloning existing projects, pushing Git commits to subversion, branching and merging, and more.
Matthew McCullough
159k 402.2k
Foundations of RESTful Architecture
The Representational State Transfer (REST) architectural style is a worldview that elevates information into a first-class element of architectures. REST allows us to achieve the architectural properties of performance, scalability, generality, simplicity, modifiability, and extensibility. This newly updated Refcard explains main HTTP verbs, describes response codes, and lists libraries and frameworks. It also gives additional resources to further explore each topic.
Brian Sletten
136.2k 301.5k
Getting Started with Ajax
Unlocking Unobtrusive JavaScript
Introduces Ajax, a group interrelated techniques used in client-side web development for creating asynchronous web applications.
Dave Crane
105.5k 238.8k
Scrum
The Most Popular Agile Methodology
Scrum is a framework that allows people to productively and creatively deliver products of the highest possible value. With over 70% of Agile teams using Scrum or Scrum hybrid, learn more about its benefits in managing complex product development. This newly updated Refcard explores the details of Scrum, including theory, values, roles, and events. It also includes a sample of a popular approach to deliver Integrated Increments in a scaled environment.
Dave West
107.2k 305.7k
Core Java Concurrency
Understanding the Core Concurrency Concepts
This Refcard will help Java developers working with multi-threaded programs to understand core concurrency concepts and how to apply them. Overview the key aspects of the Java language and get references on the core library.
Igor Sorokin
115.6k 294.6k
Spring Configuration
Dependency Injection in a Nutshell
Catalogs the XML elements available as of Spring 2.5 and highlights those most commonly used: a handy resource for Spring context configuration.
Craig Walls
110k 316k
Core CSS: Part I
First Steps in CSS
Covers Core principles of CSS that will expand and strengthen your professional ability to work with CSS. Part one of three.
Molly Holzschlag
95.3k 224.9k
jQuery Selectors
The Core jQuery Reference
Introduces jQuery Selectors, which allow you to select and manipulate HTML elements as a group or as a single element in jQuery.
Bear Bibeault
97k 385.5k
Getting Started with Eclipse
Test and Debug Code With Java’s Leading IDE
Eclipse IDE is a cross-platform, multi-purpose, open-source Integrated Development Environment. It is widely used to develop projects in Java, JavaScript, PHP, C++, Scala, and many others. This newly updated Refcard breaks down installing, setting up, and getting started with Eclipse. It also covers productivity tips, creating new projects and files, accessing Source Control Managers, and debugging configurations.
Mickael Istria
87k 253.5k
Core CSS: Part II
Understanding Selectors
Covers Core principles of CSS that will expand and strengthen your professional ability to work with CSS. Part two of three.
Molly Holzschlag
77.6k 158.3k
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