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38 posts

Non-Relational Databases and Their Types

Last Updated: 23 July 2025

In the area of database management, the data is arranged in two ways which are Relational Databases (SQL) and Non-Relational Databases (NoSQL). While relational databases ...read more

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DBMS-Relational Model

Working on Oracle Tablespaces for Developers

Last Updated: 23 July 2025

A database, as defined by Oracle, is an organized collection of information typically stored electronically in a computer system. The explanation is simple, however, it’s ...read more

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SQL Select Database

Last Updated: 28 April 2025

The USE DATABASE statement is a command in certain SQL-based database management systems that allows users to select and set a specific database as the default for the cur...read more

SQL CREATE DATABASE and CREATE TABLE

Last Updated: 26 August 2025

CREATE command in SQL is used to define new databases and tables. A database acts as a container that holds related objects such as tables, views and procedures, while a t...read more

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SQL DROP DATABASE

Last Updated: 23 July 2025

The SQL DROP DATABASE statement is an important command used to permanently delete a database from the Database Management System (DBMS). When executed, this command remov...read more

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Last Updated: 27 August 2025

CROSS JOIN in SQL generates the Cartesian product of two tables, meaning each row from the first table is paired with every row from the second. This is useful when you wa...read more

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Last Updated: 27 August 2025

A Self Join is a regular join where a table is joined with itself. It is particularly useful when comparing rows within the same table, such as retrieving employee-manager...read more

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SQL vs NO SQL vs NEW SQL

Last Updated: 23 July 2025

SQL stands for Structured Query Language. Which is based on relational algebra and schema is fixed in this which means data is stored in the form of columns and tables. SQ...read more

Difference Between

How to Update Current Timestamp in MySQL?

Last Updated: 30 November 2021

MySQL is an easy-to-use RDBMS. Many organizations prefer to use it because of its easy maintainability, easier to prepare schemas, stored procedures, triggers, and databas...read more

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How to Create User in Oracle Database ?

Last Updated: 23 July 2025

In Oracle databases, creating and managing users is a critical task for database administrators to control access and maintain security. The CREATE USER command is used to...read more

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Last Updated: 23 August 2025

Structured Query Language (SQL) is the standard language used to interact with relational databases. It allows users to store, retrieve, update and manage data efficiently...read more

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SQL HAVING Clause

Last Updated: 26 August 2025

HAVING clause filters results after applying aggregate functions. Unlike WHERE, which filters individual rows, HAVING works with aggregated results.Its main features inclu...read more

Multiple Joins in SQL

Last Updated: 27 August 2025

In SQL, multiple joins allow you to combine data from more than one table in a single query. This helps efficiently retrieve complex datasets without running multiple sepa...read more

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Technical Scripter

Working With JSON in SQL

Last Updated: 23 July 2025

JSON stands for Javascript Object Notation. It is mainly used in storing and transporting data. Mostly all NoSQL databases like MongoDB, CouchDB, etc., use JSON format dat...read more

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Join Multiple Tables Using Inner Join

Last Updated: 23 July 2025

To retrieve data from the single table we use SELECT and PROJECTION operations but to retrieve data from multiple tables we use JOINS in SQL. There are different types of ...read more

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