Articles


Context

  • 1: Is choosing a database easy?
  • 2: What are the different categories of databases?
    • 2.1: What are Relational Databases?
      • Relational Databases – OLTP – Online Transaction Processing
        • Cloud SQL
        • Cloud Spanner
        • Cloud SQL vs Cloud Spanner
      • Relational Database – OLAP – Online Analytics Processing
        • BigQuery – Modern Data warehouse
    • 2.2: What are NoSQL Databases?
      • Cloud Datastore and Firestore
      • Cloud BigTable
      • Choosing between Cloud Firestore, Datastore vs Cloud BigTable
    • 2.3: What are In-memory Databases?
  • 3: Let’s get a quick summary

Is Choosing a Database Easy?Datacenters

Choosing a database for your use case is not easy. A few factors you would need to consider:

  • 1: Do you want a fixed schema? Do you want flexibility in defining and changing your schema? Do you want to go schemaless?
  • 2: What level of transaction properties do you need? (atomicity and consistency)
  • 3: What kind of latency do you want? (seconds, milliseconds or microseconds)
  • 4: How many transactions do you expect? (hundreds or thousands or millions of transactions per second)
  • 5: How much data will be stored? (MBs or GBs or TBs or PBs)

Before we get into the details, let’s explore the different categories of databases:

Source de l’article sur DZONE

This article will demonstrate the heterogeneous systems integration and building of the BI system and mainly talk about the DELTA load issues and how to overcome them. How can we compare the source table and target table when we cannot find a proper way to identify the changes in the source table using the SSIS ETL Tool?

Systems Used

  • SAP S/4HANA is an Enterprise Resource Planning (ERP) software package meant to cover all day-to-day processes of an enterprise, e.g., order-to-cash, procure-to-pay, finance & controlling request-to-service, and core capabilities. SAP HANA is a column-oriented, in-memory relational database that combines OLAP and OLTP operations into a single system.
  • SAP Landscape Transformation (SLT) Replication is a trigger-based data replication method in the HANA system. It is a perfect solution for replicating real-time data or schedule-based replication from SAP and non-SAP sources.
  • Azure SQL Database is a fully managed platform as a service (PaaS) database engine that handles most of the management functions offered by the database, including backups, patching, upgrading, and monitoring, with minimal user involvement.
  • SQL Server Integration Services (SSIS) is a platform for building enterprise-level data integration and transformation solutions. SSIS is used to integrate and establish the pipeline for ETL and solve complex business problems by copying or downloading files, loading data warehouses, cleansing, and mining data.
  • Power BI is an interactive data visualization software developed by Microsoft with a primary focus on business intelligence.

Business Requirement

Let us first talk about the business requirements. We have more than 20 different Point-of-Sale (POS) data from other online retailers like Target, Walmart, Amazon, Macy’s, Kohl’s, JC Penney, etc. Apart from this, the primary business transactions will happen in SAP S/4HANA, and business users will require the BI reports for analysis purposes.

Source de l’article sur DZONE


In this article, we will continue to explain how different components in Milvus interact with each other to complete real-time data queries.

Some useful resources before getting started are listed below. We recommend reading them first to better understand the topic in this post.

Source de l’article sur DZONE

In our day-to-day work, we develop applications that include interactions with software components through I/O. They can be a database, a broker, or some form of blob storage. Take, for example, the cloud components you interact with: Azure Storage Queue, SQS, Pub/Sub. The communication with those components usually happens with an SDK.

From the start, testing will kick in. Therefore, the interaction with those components should be tackled in a testing context. An approach is to use installations (or simulators) of those components and have the code interacting with an actual instance, just like the way it can be achieved by using test containers or by creating infrastructure for testing purposes only.
Another approach is to spin up a mock service of the components and have the tests interacting with it. A good example of this can be Hoverfly. A simulated HTTP service is run during testing and test cases interact with it. 

Source de l’article sur DZONE

We write this guide to the best new tools for designers and developers each month. For October, we’ve sought out tools to make you a better website builder, some handy utilities to make you more productive, and a spooky font for the end of the month. Enjoy!

Microsoft Designer

Microsoft Designer is a brand-new app for creating images from text prompts. You can create social media posts, blog images, and any other assets you need with its step-by-step guided process.

Remix

Remix is a full-stack web framework for React that lets you focus on designing your UI. Remix is geared towards web standards and delivers a resilient user experience so you can build better sites.

Ultra

Ultra is a super-fast package manager that uses hardlinks to install packages. It’s up to ten times faster than NPM and Yarn, and the project is open-source.

AskEdith

AskEdith is an AI-powered app that translates English into SQL so you can query your database without writing custom SQL. Just type a description of what you want to know, and the app creates the query for you.

Wide Angle Analytics

Wide Angle Analytics is a GDPR-compliant Google Analytics alternative that puts privacy first. Track actions across multiple sites and discover insights about your site without exposing yourself to privacy violations.

story.to.design

Imagine being able to import a whole webpage straight into Figma. You can, with story.to.design, a fantastic app that imports code into Figma for updating UI elements or speeding up redesigns.

Metlo

Metlo is a testing platform for securing APIs. By running comprehensive tests against your API, you can uncover issues like unidentified endpoints, before they become a security threat.

StockAI

Nothing is more frustrating than searching for the right stock image when one doesn’t exist. StockAI is a day-saver that searches for stock images, and if the sought-after image doesn’t exist, it will generate one for you.

Growthfyi

If ad-blockers are playing havoc with your Google Analytics, check out this script from Growthfyi. It’s an invaluable service that doubles the speed of GA while ensuring ad-blockers don’t catch it.

Sourcery

Sourcery is an excellent tool for developers that continually reviews your code and suggests improvements automatically. Write better code, and catch errors before it goes to review.

Cyber Security Icons

This set of Cyber Security Icons contains 20 illustration-style icons. In addition, there are some great interpretations of complex ideas like retina scans, crypto vaults, and end-to-end encryption.

Blinqo

Blinqo is a handy little Chrome extension for anyone that needs to share their screen. It allows you to blur parts of your screen when sharing or recording, so your private details remain private.

Instaprice

Instaprice is a helpful new service that shows you what other freelancers charge for the job you’re quoting on. Earn the actual market rates and never get caught out undercharging again!

Leta

Leta is a great app that allows you to design your own keyboard layout. You can redesign the key positions for macOS, Linux, or Windows and download them for free.

Blogic

Build blogs powered by the Notion API with Blogic, a no-code blog builder that can create fast, SEO-friendly blogs in under a minute. Custom domains and third-party scripts are supported.

Digital Maker Toolkit

The Digital Maker Toolkit is a collection of resources for anyone releasing digital products. It includes guides on process, a handy step-by-step checklist, a list of further resources, and a guide to the available tools.

Slides

Slides is a static website generator you can use to create beautiful, animated websites in minutes. Select layouts from a collection of templates and publish with clean code that downloads fast.

AXplorer

AXplorer is a privacy-focused browser with a built-in VPN. Created by the Axia blockchain network, it generates free crypto in the form of AXIA coins when using it to browse the web.

Font Engine

Can’t decide on a font for your latest side project? Font Engine is a handy little app that will suggest fonts for you. Just tell it your brand values and hit the ‘Suggest’ button.

Deliciozo

Deliciozo is an excellent display font with irregular strokes and styling, making it feel like a paper cut-out. It’s perfect for magazines, cookbooks, and even logos.

Kayino

If you’re looking for a font to convey the hippy era, look no further than the psychedelic stylings of Kayino, a groovy display font with crazy details.

Noganas

Noganas is a spooktacular font for the upcoming Halloween festivities. Use it to add some gruesome frivolity to your seasonal designs.

Source

The post Exciting New Tools for Designers, October 2022 first appeared on Webdesigner Depot.

Source de l’article sur Webdesignerdepot

A few months ago, we wrote a blog post on finding and terminating long-running operations in MongoDB. To help make it even easier for MongoLab users* to quickly identify the cause behind database unresponsiveness, we’ve integrated the currentOp() and killOp() methods into our management portal.

* currentOp and killOp functionality is not available on our free Sandbox databases because they run on multi-tenanted mongod processes.

Source de l’article sur DZONE


This is an article from DZone’s 2022 Database Systems Trend Report.

For more:

Read the Report

One of the key components of microservices is how to manage and access data. The means to do that are different compared to traditional monolithic or three-tier applications. Some patterns are quite common, but others are specific and need to be evaluated before being incorporated into a solution. We will briefly go over some of these common database patterns for microservices before exploring CQRS (including how it differs from CRUD) and, finally, look at how it can be combined with event sourcing.

Source de l’article sur DZONE

Database migrations are a common part of any web application. They are used to update the database schema to match the application’s code. In a traditional web application, the database migrations are run synchronously, which means that the application is blocked until the migration is complete. This is not ideal, as it means that the application is unavailable to users during the migration. Long past the days when stopping the service for maintenance was acceptable; we need to be able to run migrations without blocking the application.

It’s easy to perform database migrations in small databases or if you have no load. But what if you have a large database and a lot of users?

Source de l’article sur DZONE

The Summer’s over, and we’re back at our desks to discover that the web’s best app builders, font designers, asset creators, and developers have been hard at work to deliver this bumper collection of exciting new tools for designers and developers.

Below you’ll find productivity apps, icons, gradients, AI, and some awesome new fonts. Enjoy!

CSS Scan

Forget right-clicking on a website to see how it’s coded. CSS Scan is a browser extension that lets you view the CSS styles of any element and copy them to your clipboard.

Slicons

Create stand-out UI designs with Slicons, a set of 300+ pixel-perfect icons. Light, regular, and bold versions match your typography and work with Figma, Sketch, XD, and Iconjar.

Codex

Codex is an IDE extension that lets you comment on your code like a pro. Anyone on your team can add comments, questions, or notes to any lines of code.

Gradientify

You too can leap aboard the gradient design trend using Gradientify, a collection of 100+ beautiful, human-designed gradients. Copy the CSS, or download PNGs for free.

90 Bitmap Shapes

Create unique logos, social media assets, apparel, and abstract icons using this editable set of 90 Bitmap Shapes in vector form for Photoshop, Sketch, and Figma.

BlockBee

Get paid in crypto using BlockBee. The Web 3.0 payments infrastructure integrates with the best ecommerce carts, including PrestaShop, Opencart, Magento, and WooCommerce.

Flatfile

Banish the woes of importing CSV data with Flatfile, a CSV importer that formats human-edited data files to eliminate errors and speed up B2B onboarding.

ClipDrop

Effortlessly clip the backgrounds from images in Figma with the ClipDrop plugin. One-click removes backgrounds, objects, people, text, or defects.

Craiyon

Craiyon is an AI drawing tool based on a stripped-down version of DALL-E. You can generate any image you like using a simple text prompt.

Google Headline Tool

Use Poll the People’s powerful Google Headline Tool to optimize your headlines for more effective search ads and clickable blog post titles.

Retro Postcard Effect

Embrace the trend for retro images using this Retro Postcard Effect for Adobe Photoshop. Easily drop your custom images into the placeholder layer for an instant vintage style.

Hugo

Hugo is an admin suite for freelancers that takes care of business with intelligent contracts, audit trails, and an integrated wallet, so you can focus on being creative.

CTA Examples

CTA Examples is a database of call-to-action examples for every possible scenario. So no matter what you want to persuade your users to do, you’ll find the best prompt here.

Superhuman

Create unique 3D characters to wow your customers using Superhuman. You can customize clothes, hair, and poses using 1500+ elements or choose from 500 pre-made characters.

PostHog

PostHog is an extensive set of tools built on a modern data stack. You can do more with your data by creating your own app or using one of the 50+ that are included for free.

Radix UI

There’s no need to reinvent UI components for React when you can use Radix UI. The high-quality, accessible components are perfect for web apps and dashboards.

KB Clip

Now you can create a searchable wiki for your business with a fraction of the effort thanks to KB Clip. Just highlight a Slack conversation, and transform it into an article in one click.

DropBlok

A great way to monetize your followers is with a custom app. DropBlok is a no-code tool that will build the app for you.

Blofishing Font

Blofishing is a gorgeous handwriting font that adds personality to your layouts. It’s ideal for wedding stationery, social media marketing, and anything that needs a personal touch.

Haratte Font

Haratte is an elegant font with graceful curves and a modern aesthetic. It’s perfect for logos, magazine design, social media assets, and more.

Source

The post Exciting New Tools for Designers, September 2022 first appeared on Webdesigner Depot.

Source de l’article sur Webdesignerdepot