In the Java ecosystem, Hibernate is a popular open-source framework that offers a reliable and effective object-relational mapping (ORM) solution. With Hibernate, mapping Java objects to database tables and vice versa, the relationship between Java applications and relational databases is made simpler.One of the main advantages of Hibernate is...

DB2 is an individual database created by IBM. It mostly manages relational database management systems (RDBMS), which aid in the storage of data in a correct relational way that aids in the analysis and retrieval of data extremely rapidly. People who are DB2 admin experts are in high demand in the present market, and the starting compensation is...

SQL (Structured Query Language) is an advanced and standardized computer language that is used to manage and manipulate relational databases. It is the communication backbone for relational database management systems (RDBMS) such as MySQL, PostgreSQL, Oracle, and Microsoft SQL Server. SQL enables users to create, retrieve, edit, and remove data...

PostgreSQL is a popular relational database management system (RDBMS). Our PostgreSQL tutorial provides basic and advanced concepts of PostgreSQL. In this tutorial, we are going to learn all the topics of PostgreSQL language, such as create a database, drop a database, select database, select table, update a record, create a table, delete...

SQL SQL is a database computer language designed for the retrieval and management of data in a relational database. SQL stands for Structured Query Language. This tutorial will give you a quick start to SQL. It covers most of the topics required for a basic understanding of SQL and to get a feel of how it works. Why to Learn SQL? SQL is...

There are many GUI tools to connect to MongoDB databases and browse but sometimes you need to get to the command line. That moment when something has gone wrong on the database server, and you need to SSH 4-levels deep in order to debug a problem with a database can leave you stuck. In this cheat sheet you can get a quick refresher...

MongoDB is a popular open-source NoSQL database management system that falls under the category of a document-oriented database. It was developed by MongoDB Inc. and is designed to provide high performance, scalability, and flexibility for handling large amounts of data. MongoDB stores data in flexible, JSON-like BSON (Binary JSON) documents,...

RDBMS Relational Database Management System is the most famous among the Database, we are calling this as relational Database meaning is there is a relationship between the data stored in the database Relational Database Management System (RDBMS) is an advanced version of a DBMS system. It came into existence during the 1970s. RDBMS system...

What is Apache Cassandra? Apache Cassandra is a distributed open source database that can be referred to as a “NoSQL database” or a “wide column store.” Cassandra was originally developed at Facebook to power its “Inbox” feature and was released as an open source project in 2008. Cassandra is designed to handle “big data”...

What is Data Manipulation? A data manipulation language (DML) is a computer programming language used for adding (inserting), deleting, and modifying (updating) data in a database. A DML is often a sublanguage of a broader database language such as SQL, with the DML comprising some of the operators in the language. Read-only selecting of data...