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Why Avoiding Unnormalized Data is Crucial in RDBMS? Top 8 Bad Practice We Must Stop Doing.

21 May 202420 December 2023 by Blogs Overflow

Avoiding Unnormalized Data

Overview:
Why Avoiding Unnormalized Data is Crucial in RDBMS? Top 8 Bad Practice We Must Stop Doing. Normalization is a database design technique used to organize data efficiently and reduce redundancy. The goal is to eliminate data anomalies and ensure data integrity. When dealing with unnormalized data, information is duplicated across multiple records, leading to inconsistencies and difficulties in maintaining the database.

Consequences of not avoiding unnormalized data.

Data Redundancy: Unnormalized data leads to redundant storage of information, wasting space and making updates error prone.
Data Inconsistency: Inconsistencies arise when changes are not propagated consistently across all instances of duplicated data.
Increased Complexity: Unnormalized structures make queries and updates more complex, affecting performance and maintainability.

Example SQL Implementation:

1- Bad Way – Denormalization with Redundant Columns

-- Bad: Redundant columns storing duplicated data
CREATE TABLE Employees (
    EmployeeID INT PRIMARY KEY,
    EmployeeName VARCHAR(255),
    DepartmentName VARCHAR(255),
    ManagerName VARCHAR(255),
    DepartmentLocation VARCHAR(255)
);

APIs in PHP CI3 -CodeIgniter 3 API Development Tutorial: Learn to Build RESTful APIs

17 December 202316 December 2023 by Blogs Overflow

Blogs Overflow help you to creating APIs (Application Programming Interfaces) in CodeIgniter 3 (CI3) involves defining routes, controllers, and handling data appropriately. Here’s a basic guide to creating APIs in CodeIgniter 3 using RESTful principles:

Install CodeIgniter
Ensure that you have CodeIgniter 3 installed on your server. You can download it from the official website and follow the installation instructions.
Configure Routes:
Open the application/config/routes.php file and set up routes for your API. For RESTful APIs, you can use the resources method to map HTTP verbs to controller methods.

$route['api/users']['get'] = 'api/users/index';
$route['api/users/(:num)']['get'] = 'api/users/view/$1';
$route['api/users']['post'] = 'api/users/create';
$route['api/users/(:num)']['put'] = 'api/users/update/$1';
$route['api/users/(:num)']['delete'] = 'api/users/delete/$1';

The Scrum Guide – Scrum Master Role should and should not do.

17 December 202314 December 2023 by Blogs Overflow

Conflicts in the Scrum Master role can arise from various sources, such as differing priorities among team members, communication breakdowns, or resistance to agile principles. Facilitating resolution and promoting collaboration are key responsibilities for Scrum Masters. Common conflicts may involve task prioritization, scope changes, or disagreements on the interpretation of Scrum practices. The Scrum Master plays a crucial role in fostering a positive team environment and addressing conflicts to ensure the smooth functioning of the Scrum team.

Full-Stack Web Development: A Guide to Essential Frameworks and Languages for Success

17 December 20239 December 2023 by Blogs Overflow

Introduction

Why Full-Stack Web Development?

Brief overview of the importance of full-stack skills in the web development landscape.
Growing demand for developers who can handle both front-end and back-end tasks.

Exploring the Best Programming Languages for Back-End Web Development: Factors, Advantages, and Trends

9 January 20249 December 2023 by Blogs Overflow

It’s important to note that the “best” language depends on various factors such as project requirements, team expertise, and specific use cases. Developers often choose languages based on their familiarity, the needs of the project, and the ecosystem surrounding each language. To get the most current and context-specific information, refer to recent surveys and industry reports from reputable sources, as mentioned in the previous response. Keep in mind that preferences and trends can change over time.

How to add ‘serial’ to existing column in PostgreSQL ?

6 December 20236 December 2023 by Blogs Overflow

If you want to convert a normal column to a serial column in PostgreSQL, you can follow these general steps. Keep in mind that this process involves creating a new serial column, copying data, and dropping the old column.

How to copy a table PostgreSQL ?

7 December 20236 December 2023 by Blogs Overflow

To copy a table in PostgreSQL, you can use the CREATE TABLE statement with the AS clause. This allows you to create a new table that is a copy of an existing table. Here’s a basic example:

+ More

Consequences of not avoiding unnormalized data.

Example SQL Implementation:

Introduction

Why Full-Stack Web Development?

Don’t miss these tips!