Daniel Calbimonte

Database interview questions

June 11, 2021 by

Introduction

If you are applying to a new DBA job or a job that requires database knowledge, you probably want to study the most common questions in an interview. If that is your case, this article may be useful. The article contains typical questions about databases. The database interview questions that are typical are the following:

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Aveek Das
Installing the PostgreSQL management tool - PGAdmin

An overview of PGAdmin – PostgreSQL Management Tool

June 10, 2021 by

In this article, we are going to learn about PGAdmin, a PostgreSQL management tool. As you are aware SQL Server Management Studio (SSMS) and the MySQL Workbench are the GUI management tools for SQL Server and MySQL respectively. Similarly, in order to manage the Postgres database and its services, PGAdmin is used. PGAdmin is a web-based GUI tool used to interact with the Postgres database sessions, both locally and remote servers as well. You can use PGAdmin to perform any sort of database administration required for a Postgres database.

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Nisarg Upadhyay
set database to single user mode

ALTER DATABASE SET SINGLE_USER statement in SQL Server

June 7, 2021 by

In this article, we are going to explore the purpose of the ALTER DATABASE SET SINGLE_USER statement. The ALTER DATABASE SET SINGLE_USER is used to put the database in single-user mode. When any database is in single-user mode, the new user cannot connect to the database. However, the users that are already connected to the database do not get disconnected.

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Aveek Das
Connecting to the PostgreSQL instance using PGAdmin4

Install and upgrade PostgreSQL to support Spatial Data

May 26, 2021 by

Spatial data deals with data related to geography. In this article, we are going to understand the various concepts related to geographic or spatial data and how PostgreSQL can be leveraged as a database to store such geographic information. As you might be already aware, PostgreSQL is a popular and widely used open-source relational database management system that can handle production workloads very easily. With the availability of the cloud, you can quickly spin up instances of Postgres on major public cloud providers like AWS, Azure, GCP, etc.

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Aveek Das
A simple Regular Expression in PostgreSQL -

Working with Regular Expressions in PostgreSQL

May 14, 2021 by

In this article, I am going to talk about using regular expressions in a Postgres database. Regular Expressions, also known as RegEx are pattern matching criteria that can filter data based on the pattern. It is heavily used to match string values to a specific pattern and then filter the results based on the condition. From a beginner’s perspective, these regular expressions can seem to be quite complex in the first, however, as you will start using these on a daily basis, you will come to the underlying logic, and then you can start writing your own RegEx statements.

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