Relational Databases Resources

While MySQL is a popular and widely used database management system Limited Advanced Features ,Complexity of Scaling

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Open Source: PostgreSQL is free and open-source software, meaning anyone can download, use, and modify it as needed without licensing costs. SQL Compliance: PostgreSQL has high compliance with the SQL standard and supports many advanced SQL functionalities. Extensibility: Users can define their own data types, operators, functions, and can even write code in different programming languages without relying solely on SQL. Support for Advanced Features: It supports features like transactions, subselects, triggers, views, referential integrity, and many others. Data Type Support: In addition to standard data types, PostgreSQL supports several other types, such as arrays, hstore (for storing key-value pairs), JSON, and JSONB, to work directly with data in JSON format, among others. MVCC (Multi-Version Concurrency Control) Concurrency: This allows multiple transactions to be executed concurrently without blocking each other. Extensions and Add-ons: There are many plugins and extensions available for PostgreSQL, which add functionalities like full-text search, geospatial, among others.

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SAP recently came with a service called SaaS, i.e. Software AS A Service. It is nothing different, but the SAP S/4-Cloud platform for the entire ERP suite it has. Following are some of the SAP versions, both on-cloud as well as on-premise.

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