Your database will crash. It's not a matter of if it will crash, it's when. So here's my question: is your system designed to survive it? *One database. One crash. Total downtime. * That's the risk ...

Originally published on Medium: https://medium.com/@ezeanyimhenry/solving-a-complex-backend-challenge-my-journey-with-the-hng-internship-6349ffb29622 Embarking on the journey of a backend developer is...

In a data warehouse system, the DWS and ADS layers mark the critical boundary between “data modeling” and “data delivery.” The former carries shared aggregation and metric reuse capabilities, determin...

version 2.3.13! This release is a milestone for Apache SeaTunnel, bringing important features such as Checkpoint API, Flink engine upgrade, large file parallel processing, multi-table sync, AI Embeddi...

Filtering (WHERE clause) Filtering means → only certain rows are selected based on a condition. SELECT name, salary FROM Employee WHERE salary > 55000; Output: name salary Priya 60000 Meena ...

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Aggregative Function: Aggregate functions perform calculations on multiple rows and return a single result. They’re essential for: Summarizing data (e.g., total salary, average marks) Analyzing trend...

TL;DR: pg_duckpipe is a PostgreSQL extension that continuously streams your heap tables into DuckLake columnar tables via WAL-based CDC. One SQL call to start, no external infrastructure required. Whe...

In the field of quantitative investment research, factor discovery and application are evolving toward higher-frequency and more granular… Continue reading on Medium »

With PostgreSQL 17 incremental backups wer introduced in a built in way. This article describes the result of a workshop dedicated to study this new feature. We used the following docker composition ...