The hottest Database Substack posts right now

And their main takeaways
Category
Top Technology Topics

Talking NHL Ice Design With the World’s Premier Rink Historian

Uni Watch • 530 implied HN points • 18 Jan 24
🎾 Sports Database
  1. David Crabtree is a leading expert in hockey ice design, focusing on NHL ice surfaces.
  2. TheFaceoff.net is a valuable online database dedicated to hockey ice design, similar to uniform databases for sports like baseball and football.
  3. Crabtree's interest in hockey graphics extends beyond ice design to other visual aspects of hockey, like uniforms and logos.

I spent 5 hours understanding more about the Delta Lake table format

VuTrinh. • 179 implied HN points • 04 May 24
🕹 Technology Database
  1. Delta Lake is designed to solve problems with traditional cloud object storage. It provides ACID transactions, making data operations like updates and deletions safe and reliable.
  2. Using Delta Lake, data is stored in Apache Parquet format, allowing for efficient reading and writing. The system tracks changes through a transaction log, which keeps everything organized and easy to manage.
  3. Delta Lake supports advanced features like time travel, allowing users to see and revert to past versions of data. This makes it easier to recover from mistakes and manage data over time.

Be an active listener at work ⚡

Arpit’s Newsletter • 216 implied HN points • 28 Jan 24
🕹 Technology Database
  1. Good engineers actively listen to understand the intent and context in meetings and discussions.
  2. Asking the right questions clarifies ambiguities and prevents mistakes during development.
  3. Active listening indicates high ownership mindset and gives necessary visibility in the organization.

Redis and Python: 20% of effort, 80% of effects

Bite code! • 1467 implied HN points • 03 Mar 24
🕹 Technology Database
  1. Redis is a powerful companion for Python, used for caching, sharing states, and creating queues.
  2. Redis is easy to use and highly efficient, widely employed in the industry for tasks like caching and inter-process communication.
  3. With basic features like lists, hashes, and sets, Redis has vast utility in tasks such as caches, queues, and inter-process communication.

Blockchain as a Database (Part 1)

Cryptocurrency and Friends • 275 implied HN points • 11 Jun 23
🕹 Technology Database
  1. A blockchain serves the purpose of allowing users to compute a copy of the same database with confidence.
  2. For worldwide agreement on a blockchain, a consensus protocol is needed to enable all parties to agree on new data blocks.
  3. Implementing rules for parsing data blobs on blockchains requires operational enforcement and governance to ensure consistency and security.
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We could make our homes easier to decarbonise by using a crazy, sci-fi technology called a "database"

Odds and Ends of History • 737 implied HN points • 28 Feb 24
🌞 Climate & Environment Database
  1. Decarbonizing homes by replacing gas boilers with heat pumps is a known solution, but the challenge is logistical and costly for homeowners.
  2. Creating a central register of gas safety certificates could help target incentives for upgrading inefficient boilers, improve data collection, and hold landlords accountable.
  3. Adding gas safety certificate management to the Gas Safety Register's contract during the upcoming tender can facilitate the implementation of the central register at a minimal cost to the government.

Datetime vs Timestamp datatype in databases - Which one is better?

Arpit’s Newsletter • 176 implied HN points • 26 Apr 23
🕹 Technology Database
  1. In databases, you can use DATE, DATETIME, or TIMESTAMP data types to store date and time information, each with its own range of values.
  2. DATETIME is best for storing static timestamps like appointment schedules, while TIMESTAMP is ideal for recording event timestamps with efficient storage and automatic timezone handling.
  3. Consider factors like range, storage requirements, and use cases when choosing between DATETIME and TIMESTAMP for accurate and efficient temporal data storage.

Eventual Business Consistency

Software Design: Tidy First? • 134 HN points • 04 Aug 23
🕹 Technology Database
  1. The goal is to achieve eventual business consistency by closely matching what's in the system with real-world events.
  2. Different data storage methods like storing dated data or double-dated data come with trade-offs in complexity and accuracy.
  3. Bi-temporal systems use two dates to track when data changes occurred in reality and when they were recorded in the system for better business operations.

Introducing the Restaurant Booking API

microapis.io • 98 implied HN points • 24 Mar 23
🕹 Technology Database
  1. The post introduces the Restaurant Booking API series with educational tutorials and practical examples.
  2. The API will cater to customers and restaurant owners, allowing tasks like booking tables and managing menus.
  3. Key URL paths in the API include '/restaurants', '/owners', and '/customers', with detailed functionalities for each.

List of 4,000+ Funders in Africa

Grant & Co • 19 implied HN points • 06 Feb 24
💼 Business Database
  1. Grant & Co offers a database of 4,000+ funders in Africa for $1,000 starting March 1, 2024, but currently has a free sneak peek available.
  2. For $100, users can access additional data like funding amounts, previous investees, and notes on funders' preferences in the Premium version for a limited time.
  3. Grant & Co is a reader-supported publication, and readers can choose to become free or paid subscribers to support the work.

How I made Quickview, my AI-based Crypto Newsletter

Implementing • 19 implied HN points • 05 Feb 24
🕹 Technology Database
  1. Quickview is a newsletter created to share AI-based summaries of YouTube videos from crypto creators, helping subscribers stay informed and connected with the crypto community.
  2. Database modeling for this project involves tables for videos, creators, categories, languages, summaries, and newsletters on Substack, creating a structured system.
  3. Automation in the process includes collecting YouTube videos, generating summaries with ChatGPT, and publishing a new post daily using scheduled tasks and Heroku, optimizing efficiency.

Streamlining Your Database Management: Setting Up PostgreSQL with Docker and pgAdmin

DataSketch’s Substack • 1 HN point • 03 Sep 24
🕹 Technology Database
  1. PostgreSQL is a great choice for databases because it's reliable, flexible, and open-source. Its advanced features make it suitable for various projects.
  2. Using Docker makes managing PostgreSQL easier by providing isolation, portability, and quick setup. This allows you to run the database without conflicts and move it easily between environments.
  3. pgAdmin is a useful tool for managing PostgreSQL databases. Running it in Docker alongside PostgreSQL gives you a flexible way to interact with your database through a web browser.

#065 ✰ Riding a good life

Objet • 19 implied HN points • 19 Apr 23
🎨 Art & Illustration Database
  1. Objet explores consumerism, myth, satisfaction, and joy.
  2. The focus is on bringing back joy and pride in our relationship with shopping.
  3. The app offers enhancements like sharable profiles, bounties, and curated reads.

Indexing/Querying strategy with BoltDB

Hasen Judi • 107 implied HN points • 31 Mar 23
🕹 Technology Database
  1. In a B-Tree based storage system like BoltDB, you need to be explicit about indexing and querying data, unlike relational databases that automatically handle indexing.
  2. By maintaining bidirectional mappings between terms and targets, and incorporating priorities for sorting, you can efficiently retrieve and sort data without unnecessary overhead.
  3. BoltDB enables indexing data by any criteria, offering flexibility in ranking objects and improving relevance in search results, while eliminating the overhead associated with SQL databases.

Data Persistence Q&A

Hasen Judi • 71 implied HN points • 02 Apr 23
🕹 Technology Database
  1. Reinventing the wheel in data persistence can lead to more efficient and simplified systems than using relational databases.
  2. Having a persistence engine that writes data to disk as needed ensures reliability, scalability, and preserves disk lifespan.
  3. In handling object deletion within the indexing system, it's better to mark objects as deleted rather than cascading deletes, allowing for explicit control over data management.

Elaboration of the PostgreSQL sort cost model

Conserving CPU's cycles ... • 1 HN point • 01 Jul 24
🕹 Technology Database
  1. Column order matters in the PostgreSQL sort cost model, impacting execution time significantly. Choosing the optimal order of sorting columns can vastly affect computational efforts.
  2. Proposed modifications to the cost model aim to consider the number of columns in the sorting tuple and the number of duplicates, providing additional tools for query plan optimization.
  3. Adjusting the PostgreSQL optimizer's cost model involves balancing costs for various operations, taking into account factors like extended statistics, column order, and the complexity of sorting.

Will PostgreSQL switch to a Thread-based model ?

Engineering At Scale • 15 implied HN points • 24 Jun 23
🕹 Technology Database
  1. PostgreSQL currently uses a process-based model for handling client connections and managing data.
  2. The process-based model offers advantages like fault isolation, security guarantees, and efficient resource management.
  3. Although there are advantages to the process-based model, the community is considering a switch to a thread-based model for PostgreSQL in the future.

Issue #48

Infra Weekly Newsletter • 13 implied HN points • 31 May 23
🕹 Technology Database
  1. The Golang project development process has evolved in recent years.
  2. Fedora Onyx is now an official Fedora Linux Immutable Variant.
  3. Using Flatpak for Linux software installations has 5 key advantages.

Updates to the Ultimate Vitamin K2 Resource

Harnessing the Power of Nutrients • 19 implied HN points • 29 Dec 16
🏥 Health & Wellness Database
  1. Improved Clarity to the Second Infographic: Updates were made for easier readability by changing the font and background.
  2. The Site Now Loads Three Times Faster: Migrating the site to WP Engine resulted in faster page loading speeds.
  3. Emu Oil, Green Pastures Butter Oil, and Over a Dozen Other Foods Added: Various foods like oils, liver, and butter were added to the searchable database for detailed analysis.

libSQL: Diving Into a Database Engineering Epic

Luminotes • 2 HN points • 23 Jul 23
🕹 Technology Database
  1. SQLite is widely used and respected in critical industries due to strong engineering ethics and a commitment to reliability and backward compatibility.
  2. Forking a project like SQLite, as seen with libSQL, requires competent developers, a clear purpose, and a focus on maintaining high standards to ensure success.
  3. libSQL offers innovative features like different wire protocols, virtual WAL, user-defined WASM functions, and replication to the edge, showcasing the project's evolution and dedication to excellence.

An algebraic curiosity

Minimal Modeling • 0 implied HN points • 18 Nov 23
🕹 Technology Database
  1. There is always one non-1NF relation in every real-world database.
  2. The relation discussed is undeniably not in the first normal form.
  3. This construction exists in every WordPress installation, among other databases.

Pizza Place Payments

Money in Transit • 0 implied HN points • 23 Jan 24
🕹 Technology Database
  1. Understanding the separation of orders and payments is crucial for developing useful payment applications.
  2. When building payment applications, ensure past orders and payments are unaffected by future changes in products and variants.
  3. Invoices notify about payments, receipts prove payments; keep both immutable and associated with an order.

My Backend Template for Node.js

Implementing • 0 implied HN points • 08 Jan 24
🕹 Technology Database
  1. The project structure for a Node.js backend, inspired by the Model View Controller (MVC) approach, includes folders for controllers, models, and utilities to maintain context information for HTTP requests effectively.
  2. The use of a custom logger within the application without relying on external libraries provides flexibility and control over log formatting and content, allowing easy debugging and monitoring.
  3. Switching from MySQL to Postgres for personal projects offers advantages in terms of transaction handling, materialized view creation, cost-effectiveness in hosting, and better performance for certain tasks.

[Mock]Design a URL Shortening service like goo.gl or bit.ly

The ZenMode • 0 implied HN points • 04 Mar 24
🕹 Technology Database
  1. A URL shortening service converts long URLs into short, unique ones for easy sharing and remembering.
  2. The steps in shortening a URL involve inputting the long URL, generating a unique short URL, storing the mapping, and redirecting users to the original URL.
  3. Designing a URL shortening service includes high scalability, availability, key generation methods, security measures like rate limiting, and handling data growth using tools like distributed databases.

Today’s Top 5 HN posts

Top 5 HN Posts of the day • 0 implied HN points • 21 May 24
🕹 Technology Database
  1. Scarlett Johansson's statement on OpenAI "Sky" voice was a top post on HackerNews
  2. Enlightenmentware and Copilot+ PCs were also popular posts on HackerNews
  3. The war on encryption, Introduction of Copilot+ PCs, and PostgreSQL time-series extension were among the highlighted topics