Posts related to tag: Database

ORA-01045: user xxx lacks CREATE SESSION privilege; logon denied

In the Oracle database, if you have created a new user and tried to log in with a newly created […] Continue reading »


In MongoDB database, db.collection.update({criteria},{$operator: {new value}}) or db.collection.updateMany({criteria},{$operator: {new value}}) method is used to ADD, DELETE, or MODIFY/RENAME the existing […] Continue reading »


This page will help you to perform the basic query/operation with the MongoDB database like SELECT, INSERT, UPDATE, and DELETE. […] Continue reading »

How to set Username, Password, and Roles to MongoDB Database

In this guide, we’ll show you how to set username, password, and roles to the MongoDB database. MongoDB database instance […] Continue reading »

Spring Boot + MongoDB CRUD Example

In this article, we’ll build a Spring Boot REST API which performs the create, read, update, and delete (CRUD) operation […] Continue reading »

Spring Data MongoRepository Interface Methods Example

In this article, we’ll explore the methods available in the MongoRepository interface provided by Spring Data in the package […] Continue reading »

How to connect Spring Boot application with MongoDB

This guide will help you to establish a database connection bridge between the Spring Boot application and MongoDB database. You […] Continue reading »

Spring Boot REST API File Upload/Save Example

This guide shows you how to upload/save a file using Spring Boot REST API. To upload files via HTTP multi-part […] Continue reading »

Spring Boot- Display image from database and classpath

On this page, we are going to learn how to display image from the database and classpath location using Spring […] Continue reading »

Spring Data CrudRepository Interface Example

This article will focus on the implementation of Spring Data CrudRepository interface into a Spring Boot project. CrudRepository is used […] Continue reading »

How to set .bash_profile in Linux for Oracle

This page will walk through¬†How to set .bash_profile in Linux for Oracle.¬†.bash_profile is executed to configure your login shell before […] Continue reading »

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