October 2025

Database optimisation - indexes, query planner and cache

As the application grows, the database often becomes its weakest link. Initially, fast queries start to take seconds to complete and the server CPU reaches 100% of load with each report. Understanding how to optimise a mysql postgresql database is not just a matter of adding a few indexes - it's a process of deep analysis of how the database engine interprets your

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Online shop - how to build it and position it from scratch?

In 2026, e-commerce is not just a trend, it is the foundation of modern commerce. But the market is saturated and customers are more demanding than ever. If you're wondering how to build an e-commerce shop that doesn't just „look” like it, but realistically makes money, you need to combine solid technology with a thoughtful SEO strategy. This guide will take you through the key stages - from

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How to price a website - a guide for freelancers and agencies

Determining the right rate for the work performed is one of the most difficult skills in the IT industry. A price that is too high can scare off a potential contractor, while a price that is too low can lead to frustration and a lack of project profitability. If you're wondering how to price a website project, you need to understand that you're not just paying to „write code”. You are paying to solve a problem

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