Programmers

Scalability Vs. Elasticity

13 Apr 2024

Contributed by Lukas

The Shared Columns that Pop Up in Many Tables

08 Apr 2024

Contributed by Lukas

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Fault Tolerance Vs. High Availability

06 Apr 2024

Contributed by Lukas

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Intellij 2024.1

30 Mar 2024

Contributed by Lukas

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Timezones

27 Mar 2024

Contributed by Lukas

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Vaadin Reflex React

23 Mar 2024

Contributed by Lukas

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The Abundant Java Ecosystem

22 Mar 2024

Contributed by Lukas

The Abundant Java Ecosystem: Libraries, Spring, Databases, and Lombok

Is gRPC overhyped?

16 Mar 2024

Contributed by Lukas

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URI vs. URL

15 Mar 2024

Contributed by Lukas

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DynamoDB, Cassandra, MongoDB and Redis

13 Mar 2024

Contributed by Lukas

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Jupyter Notebooks in Production: Friend or Foe?

12 Mar 2024

Contributed by Lukas

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Toyota Battery 💪

11 Mar 2024

Contributed by Lukas

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React 18 Updates

11 Mar 2024

Contributed by Lukas

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🔥 Unit Testing Best Practices

10 Mar 2024

Contributed by Lukas

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🛟 Unit Testing

08 Mar 2024

Contributed by Lukas

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👻 Plane Open Source Jira Alternative

01 Mar 2024

Contributed by Lukas

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🔥 Java Date Time

29 Feb 2024

Contributed by Lukas

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💡About Ideas

27 Feb 2024

Contributed by Lukas

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💲Market Resilience

27 Feb 2024

Contributed by Lukas

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👌 Python Reglex

21 Feb 2024

Contributed by Lukas

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💰 Do high interest rates fix inflation

17 Feb 2024

Contributed by Lukas

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🛟 System Design Dropbox Google Drive

15 Feb 2024

Contributed by Lukas

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🥱 GoLang Maps Tutorial

09 Feb 2024

Contributed by Lukas

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🥱 Golang variadic functions

06 Feb 2024

Contributed by Lukas

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💤 Cancellation Timeouts

02 Feb 2024

Contributed by Lukas

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🦜Hive, Elasticsearch, PostgreSQL, Apache Doris

26 Jan 2024

Contributed by Lukas

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Http Streaming 💡

19 Jan 2024

Contributed by Lukas

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Redesign Backend 🦜

14 Jan 2024

Contributed by Lukas

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Backend Redesign 👨‍💻

22 Dec 2023

Contributed by Lukas

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Mutex Semaohore 🤯

15 Dec 2023

Contributed by Lukas

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Browser Requests 🛜

08 Dec 2023

Contributed by Lukas

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Bloom Filters ⭐

14 Nov 2023

Contributed by Lukas

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Long Polling 🛜

13 Nov 2023

Contributed by Lukas

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Transactions 🛢️

17 Oct 2023

Contributed by Lukas

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Alternatives for Side Projects

08 Oct 2023

Contributed by Lukas

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Poetry Virtual Envs

04 Oct 2023

Contributed by Lukas

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Aws Redshift vs RDS vs DDB

29 Sep 2023

Contributed by Lukas

Aws Redshift vs RDS vs DDB

Vectors Linear Combinations

24 Sep 2023

Contributed by Lukas

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Working Brains

22 Sep 2023

Contributed by Lukas

📕BOOK - Set Boundaries, Find Peace - https://amzn.to/48krxnn

LeetCode 36 Validate sudoku board ⛈️

19 Sep 2023

Contributed by Lukas

📕BOOK - Hacking the System Design Interview - https://amzn.to/48tkn07

Aws Vpc Route tables Subnets 🛜

09 Sep 2023

Contributed by Lukas

📕BOOK - AWS: Virtual Private CLoud tutorial (VPC) for Beginners - https://amzn.to/3Zv4rpL

Spark Executors Cores

02 Sep 2023

Contributed by Lukas

📕BOOK - High Performance Spark - https://amzn.to/458wnRE

Pandas Tips 💁‍♂️

22 Aug 2023

Contributed by Lukas

📕BOOK - Python for Data Analysis - https://amzn.to/48uvUMr

ProtocolBuffers Avro Parquet 🛢️

18 Aug 2023

Contributed by Lukas

📕BOOK - gRPC: Up and Running - https://amzn.to/3taxlje

Userscripts and Tampermonkey 🐵

12 Aug 2023

Contributed by Lukas

Userscripts and Tampermonkey

Python Template and Bridge Design Patterns 😇

11 Aug 2023

Contributed by Lukas

Python Template and Bridge Design Patterns

Trie 🤳

01 Aug 2023

Contributed by Lukas

Trie

P-Value 🌞

30 Jul 2023

Contributed by Lukas

P-Value

Vs Code Useful Extensions 🤘

29 Jul 2023

Contributed by Lukas

Vs Code Useful Extensions.

Chat GPT Model 📸

27 Jul 2023

Contributed by Lukas

Chat GPT Model

Bloom Filters 🌞

24 Jul 2023

Contributed by Lukas

Bloom Filters

GraphQL vs Rest 😀

23 Jul 2023

Contributed by Lukas

GraphQL vs Rest

Hash Functions 🤣

22 Jul 2023

Contributed by Lukas

Hadh Functions

🌞 Apache Kafka

01 Jul 2023

Contributed by Lukas

Apache Kafka

🌐 Aws Networking Part 2

09 Jun 2023

Contributed by Lukas

AWS networking provides a broad set of services that enable you to , connect, and secure your applications and data. With AWS networking, you can easi...

🚂 Calculations and Status Fields

03 Jun 2023

Contributed by Lukas

How should you add status fields to calculations

⛈️ Aws Networking - Part 1

12 Apr 2023

Contributed by Lukas

AWS networking involves creating, configuring, and managing networks on Amazon Web Services. It includes services like Virtual Private Cloud (VPC), El...

💥 Spark Partitioning

06 Apr 2023

Contributed by Lukas

Cores distribution and spark and partitioning

🤳 Debug Python Projects

29 Mar 2023

Contributed by Lukas

Debugging python projects with and without tools.

🫢 Coding interview patterns

27 Mar 2023

Contributed by Lukas

Programming interview patterns involve understanding data structures, algorithms, time/space complexity, problem-solving approaches, and coding practi...

🛢️ Sql Cube and Rollup

24 Mar 2023

Contributed by Lukas

rollup.  200 word summary for sql cube and rollup SQL (Structured Query Language) is a programming language that is commonly used to manage a...

🫢 Coding interview tip for Arrays

05 Mar 2023

Contributed by Lukas

Fast arrays for coding interview

🫢 LeetCode 238 Product array except self

04 Mar 2023

Contributed by Lukas

Calculate the product of an array except self without using the division operator

🤘 Multiple Treatments in AB Testing

27 Feb 2023

Contributed by Lukas

How to work with multiple treatments in AB testing

🛢️ ACID Transactions

24 Feb 2023

Contributed by Lukas

Acid transactions are a set of properties that ensure reliable and consistent database transactions. The term "ACID" stands for Atomicity, Consistency...

📸 Japan work one less day

20 Feb 2023

Contributed by Lukas

Experiment in Japan to work one less day a week

🪚 Preconditions for t-test

19 Feb 2023

Contributed by Lukas

The preconditions to t-tesy

🔥 Lit vs React

18 Feb 2023

Contributed by Lukas

The differences between lit and react

🛢️ Sql Pivot

17 Feb 2023

Contributed by Lukas

In this episode of programmers quickie podcast, we continue our exploration of SQL pivot and dive deeper into the syntax behind this powerful data ana...

DynamoDB RCU WCU

17 Feb 2023

Contributed by Lukas

DynamoDB RCU WCU

🫢 Python Behave BDD

16 Feb 2023

Contributed by Lukas

Python Behave testing

🪓 Design a Parking Lot - System Design Interview Question

21 Jan 2023

Contributed by Lukas

In a system design interview, you will be asked to design a complex system, such as a website, mobile app, or network infrastructure. The interviewer ...

💥 Spark DataFrame Cache

11 Jan 2023

Contributed by Lukas

In Apache Spark, you can cache a DataFrame in memory using the cache() or persist() method. The cache() method is a shorthand for persist() with the d...

🌞 Social Apps

04 Jan 2023

Contributed by Lukas

Why develop apps when you can create "social apps" without coding as side projects.

n Queens problem LeetCode 51

31 Dec 2022

Contributed by Lukas

The n-queens problem is a well-known problem in computer science and mathematics that involves placing n chess queens on a n x n chessboard such that ...

🫠 CPU Times

02 Dec 2022

Contributed by Lukas

The time that it takes computers to process information.

🔥 Consistent Hashing

01 Dec 2022

Contributed by Lukas

Consistent Hashing is a distributed hashing scheme that operates independently of the number of servers or objects in a distributed hash table by assi...

🔥 AB Testing Challenges and Mitigations

28 Nov 2022

Contributed by Lukas

A couple of mitigations for a couple of ab testing challenges

A/A/B Testing

23 Nov 2022

Contributed by Lukas

Here are scenarios where we would want to use AA testing before trying out and AB testing

🔥 Http 1 Vs Http 2 Vs Http 3

20 Nov 2022

Contributed by Lukas

HTTP/1 is a textual data protocol and is good in terms of readability, ease of reimplementing, and ease of debugging. However, Binary protocols(Used i...

🪓 The Bayes theorem - Statistics for programmers

16 Nov 2022

Contributed by Lukas

In probability theory and statistics, Bayes' theorem, named after Thomas Bayes, describes the probability of an event, based on prior knowledge of con...

🫢 Token Bucket Algorithm

14 Nov 2022

Contributed by Lukas

The token bucket is an algorithm used in packet-switched and telecommunications networks. It can be used to check that data transmissions, in the form...

🧐 The Observer Pattern

07 Nov 2022

Contributed by Lukas

In software design and engineering, the observer pattern is a software design pattern in which an object, named the subject, maintains a list of its d...

🫢 Evaluating Databases

31 Oct 2022

Contributed by Lukas

There are six (6) criteria that should be applied when evaluating any Web site: authority, accuracy, objectivity, currency, coverage, and appearance.

👀Python Dataclasses

27 Oct 2022

Contributed by Lukas

The dataclass() decorator examines the class to find fields. A field is defined as a class variable that has a type annotation. With two exceptions de...

👀Python Poetry

26 Oct 2022

Contributed by Lukas

Python dependency management and packaging made easy. ... Poetry comes with all the tools you might need to manage your projects in a deterministic wa...

🤘System Design Interview - Rate Limiter Part 2

25 Oct 2022

Contributed by Lukas

In computer networks, rate limiting is used to control the rate of requests sent or received by a network interface controller. It can be used to prev...

🛢️dbt

21 Oct 2022

Contributed by Lukas

dbt - Transform data in your warehouse What is dbt? dbt is a development framework that combines modular SQL with software engineering best practices ...

💥Spark Hash and Sort Aggregate

20 Oct 2022

Contributed by Lukas

HashAggregateExec is a unary physical operator (i.e. with one child physical operator) for hash-based aggregation that is created (indirectly through ...

💥Spark Partitions Shuffle

18 Oct 2022

Contributed by Lukas

The Spark SQL shuffle is a mechanism for redistributing or re-partitioning data so that the data is grouped differently across partitions

Aws DynamoDB Backup

07 Oct 2022

Contributed by Lukas

We have two types of automatic backups in dynamodb one is point in time and another one is snapshots.

Rate Limiting Part 1

01 Oct 2022

Contributed by Lukas

System design

🌐 Meloni Italy

29 Sep 2022

Contributed by Lukas

Giorgia Meloni is an Italian politician and journalist. A member of the Chamber of Deputies in Italy since 2006, she has led the Brothers of Italy pol...

Apache Spark Unit Tests

27 Sep 2022

Contributed by Lukas

Apache spark unit tests

💲Will the fed stop inflation

26 Sep 2022

Contributed by Lukas

📚 Book - The Psychology of Money - https://www.amazon.com/Psychology-Money-Timeless-lessons-happiness/dp/0857197681#?&_encoding=UTF8&tag=planetizer...

Spark - Pivot Tables

25 Sep 2022

Contributed by Lukas

How can we pivot on spark?

Architecture.md

24 Sep 2022

Contributed by Lukas

Why a single file on your repository that describes the project could make life much easier for newcomer programmers

Spark DataSet, DataFrame, createOrReplaceTempView

12 Sep 2022

Contributed by Lukas

DataFrame.createOrReplaceTempView - Creates or replaces a local temporary view with this DataFrame. The lifetime of this temporary table is tied to t...

Spark SQL

07 Sep 2022

Contributed by Lukas

Spark SQL is a Spark module for structured data processing. It provides a programming abstraction called DataFrames and can also act as a distributed ...

Spark top 100 words from file

05 Sep 2022

Contributed by Lukas

We will describe how to use Apache Spark to get top 100 words from a file!