Introduction Installing Oracle Database 12c on a Red Hat or Oracle Linux system is a straightforward process that requires careful preparation and attention to detail. In this blog post, we will guide you through the steps to successfully install Oracle Database 12c on your Linux system. Oracle Installation Prerequisites Perform either the Automatic Setup or…
OS commands for DBA As a Database Administrator (DBA), you may need to interact with the operating system (OS) to perform various tasks related to managing databases. Here are some common OS commands used by DBAs: 1. RAM SIZE 2. Find3. SAR4. vmstat5. iostat6. swap7. uptime8. Top CPU users9. Top memory users10. Check disk space11. TOP…
What is pglogical? pglogical is an extension for PostgreSQL that provides logical replication capabilities. It allows you to replicate data changes (inserts, updates, deletes) at the row level between PostgreSQL databases. Unlike physical replication, which replicates at the block level, logical replication works at a higher level, replicating changes based on database objects (tables, schemas)…
Apache Web Server is one of the most popular and widely used web servers in the world. It is known for its reliability, flexibility, and security features. In this blog post, we will guide you through the process of hosting a sample website on Apache Web Server. Step 1: Install Apache Web Server The first…
Introduction Apache HTTP Server, commonly known as Apache, is a widely-used open-source web server software. It is known for its reliability, flexibility, and scalability, making it the most popular choice for hosting websites. In this article, we will discuss the process of configuring Apache server and implementing best practices in both Ubuntu and CentOS operating…
Apache is a popular open-source web server software that is widely used to serve websites and web applications. In this guide, we will walk you through the process of installing Apache web server and configuring your firewall to allow web server requests. Step 1: Installing Apache Web Server The first step is to install Apache…
To create a user in PostgreSQL and differentiate it between schemas, you’ll typically follow these steps: Create the User: You can create a new user in PostgreSQL using the CREATE ROLE statement. Here’s a basic example:
|
1 2 3 |
CREATE ROLE username WITH LOGIN PASSWORD 'password'; |
Replace username with the desired username and password with the password for the user. You can also specify…
Introduction to PostgreSQL PostgreSQL is a powerful, open-source relational database management system (RDBMS) known for its robustness, scalability, and extensibility. It offers a wide range of features that make it a popular choice for both small and large-scale applications. Creating a Database in PostgreSQL To create a database in PostgreSQL, you need to have administrative…
Networking Basics: A Beginner’s Guide for Engineering Students In today’s digital age, understanding the fundamentals of networking is crucial for any aspiring engineer. Whether you’re designing systems, troubleshooting issues, or optimizing network performance, having a solid grasp of networking concepts is essential. In this beginner’s guide, we’ll explore the basics of networking, including IP addresses,…
Introduction An operating system (OS) is a crucial software component that manages computer hardware and software resources, providing a foundation for other applications to run smoothly. In the context of server systems, the OS plays a vital role in ensuring efficient and secure operations. This article aims to provide an overview of OS basics and…