Create index in MongoDB

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In this MongoDB tutorial, we are going to cover how to create an index in MongoDB, including different methods, best practices, and practical examples. Create index in MongoDB What is an index in MongoDB? In MongoDB, indexes are special data structures that store a small part of the data set from which we can easily traverse. … Read more >>

PostgreSQL datatype text vs varchar

PostgreSQL datatype text vs varchar

In this tutorial, we will explore the PostgreSQL character data types, including CHAR, VARCHAR, and TEXT. Now, we will see the differences between TEXT and VARCHAR. At the end of this article, you will get clear guidance on when to use each data type for optimal database performance. PostgreSQL datatype text vs varchar Understanding PostgreSQL … Read more >>

How to Create Table in MySQL

How to create table MySQL .

In this tutorial, we will learn how to create a table in MySQL using both the MySQL command line and Workbench approaches, including the best practices with multiple examples. How to Create Table in MySQL In MySQL Database Tables, data are stored in the form of rows and columns, and we use them for both … Read more >>

MariaDB vs MySQL

MariaDB vs MySQL

As a database administrator, I’ve witnessed many doubts between MariaDB and MySQL. Today, in this article, I will walk you through everything you need to know about MariaDB vs MySQL, their differences, strengths, and ideal use cases to help you make the right choice for your project. MariaDB vs MySQL Introduction When building a website … Read more >>

MariaDB Between

MariaDB between and example

In this comprehensive MariaDB tutorial, I’ll walk you through everything you need to know about the MariaDB BETWEEN operator—a powerful clause for querying data within specific ranges with multiple examples. MariaDB Between What is the BETWEEN Operator in MariaDB? The BETWEEN operator in MariaDB is a comparison operator that allows you to test if a … Read more >>

PostgreSQL import SQL file

Postgresql import SQL file command line

In this Postgresql tutorial, we will learn about “Postgresql import SQL file” using different methods and platforms with multiple examples. We will create and insert some data into the PostgreSQL database using the SQL file or by importing the SQL file. PostgreSQL import SQL file Prerequisites Before you start, ensure you have: Prerequisite Description PostgreSQL … Read more >>

Psql import SQL file permission denied

Psql import SQL file permission denied

Recently, when I attempted to import the SQL file, I encountered the ‘permission denied’ error. First, let’s examine the error that occurs during SQL file import, and then we will discuss the solution to resolve this issue. Psql import SQL file permission denied For Windows users, enter the psql command prompt by using the command below. … Read more >>

PostgreSQL DROP TABLE

PostgreSQL DROP TABLE

Whether you’re cleaning up your database, restructuring your schema, or preparing for a fresh start, the DROP TABLE command is the best solution.In this PostgreSQL tutorial, we will discuss the PostgreSQL DROP TABLE statement to remove existing table(s) from the current database. PostgreSQL DROP TABLE You can remove table(s) from the database in PostgreSQL by using the statement … Read more >>

PostgreSQL Data Types

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In this PostgreSQL tutorial, we will learn about PostgreSQL Data Types. Here we will learn about the different data types available in PostgreSQL with examples. PostgreSQL Data Types PostgreSQL upholds a vast range of Data Types. It contains several data types, including Boolean, Numeric, Character, Temporal, Array, JSON, UUID, and special data types. When generating … Read more >>

PostgreSQL DATE Functions Examples

PostgreSQL Date Functions Manipulation DATE_PART YEAR

In this PostgreSQL tutorial, we will learn about PostgreSQL DATE Functions Examples and know how to extract specific parts of the dates, manipulate the dates, perform arithmetic operations on dates, and convert dates or times to different time zone. PostgreSQL DATE Functions Examples Let us discuss various examples one by one in detail. Example 1: … Read more >>

Top 200 SQL Server Interview Questions and Answers

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