MySQL

This is a tutorial for creating a login system with the help of PHP, MySQL, and HTML. Your website needs to be dynamic and your visitors need to have instant access to it. Therefore, they want to log in as many times as possible. The login authentication system is very common for any web application. It allows registered users to access the website and members-only features. It is also helpful when we want to store information for users. It covers…

It’s the same in the world of data, where choosing the right SQL database can make or break your organization’s success. With several options available, database selection is a crucial decision that can shape the performance, scalability and efficiency of your data platform. Finding the perfect fit for your specific needs requires careful consideration of various factors and taking time to understand different database types. This article guides you through the process of selecting a SQL database. We’ll explore the…

As organizations embrace Kubernetes for cloud-native applications, managing infrastructure efficiently becomes challenging. Traditional Infrastructure as Code (IaC) tools like Terraform, Pulumi, and others provide declarative configurations but lack seamless integration into the Kubernetes-native workflows. Crossplane effectively bridges the gap between Kubernetes and cloud infrastructure in this situation. In this blog, we’ll explore how Crossplane enables IaC for Kubernetes and beyond. What Is Crossplane? Crossplane is an open-source Kubernetes add-on that enables you to provision and manage cloud infrastructure using Kubernetes…

Encountering connection problems while accessing a MySQL server is a common challenge for database users. These issues often arise due to incorrect configuration, user permissions, or compatibility problems. Below are the most common errors and their solutions to help you resolve connection issues efficiently. 1. Error: Host ‘xxx.xx.xxx.xxx’ is not allowed to connect to this MySQL server Cause This error indicates that the MySQL server does not permit the specified host or user to access the database. It is typically…

Introducing SQLite SQLite is a kind of open-source RDBMS that is distinguished from most other database management systems built on a client-server model since it is a server-less embedded database. This means that the SQLite database runs within the software that accesses the data, eliminating the need for a separate server. Due to such architecture, SQLite is a highly reliable, efficient system that works perfectly in low-memory environments. One of the major benefits of SQLite is its cross-platform compatibility, allowing…

Disclaimer The stock data used in this article is entirely fictitious. It is purely for demo purposes. Please do not use this data for making any financial decisions. In a previous article, we saw the benefits of using Ollama locally for a RAG application. In this article, we’ll extend our evaluation of Ollama by testing natural language (NL) queries against a database system, using LangChain’s SQLDatabaseToolkit. SQL will serve as the baseline system for comparison as we explore the quality…

Classic Case 1 Many software professionals lack in-depth knowledge of TCP/IP logic reasoning, which often leads to misidentifying problems as mysterious problems. Some are discouraged by the complexity of TCP/IP networking literature, while others are misled by confusing details in Wireshark. For instance, a DBA facing performance problems might misinterpret packet capture data in Wireshark, erroneously concluding that TCP retransmissions are the cause. Figure 1. Packet capture screenshot provided by DBA suspecting retransmission problems Since retransmission is suspected, it’s essential…

Users tend to notice a decline in low-concurrency performance more easily, while improvements in high-concurrency performance are often harder to perceive. Therefore, maintaining low-concurrency performance is crucial, as it directly affects user experience and the willingness to upgrade [1]. According to extensive user feedback, after upgrading to MySQL 8.0, users have generally perceived a decline in performance, particularly in batch insert and join operations. This downward trend has become more evident in higher versions of MySQL. Additionally, some MySQL enthusiasts…

Using a local containerized database provides flexibility and simplifies setup. It allows for close replicating production environments without the complexity of traditional database installations. Docker streamlines this process, making it easy to deploy, manage, and scale databases in isolated containers with just a few commands. In this guide, you’ll learn how to: Run a local containerized database Access the shell of a containerized database Connect to a containerized database from your host Persist database data in a volume Cleanup lab…