SAP MaxDB is the database management system developed and supported by SAP SE. It has its focus on the requirements of SAP customers and SAP applications and can be used as a less expensive alternative to databases from other vendors for your own or third-party applications as well. It is a competitive database management system for medium to large server configurations and also a convincing offering for a desktop or laptop database management system, as SAP MaxDB is very easy to install (see for example SAP MaxDB Installation and Upgrade Guides, SAP MaxDB Installation on Microsoft Windows and Linux) and operate (see for example SAP MaxDB wiki, SAP MaxDB Backup and Restore).
The key benefits of SAP MaxDB are its many built-in self-administering features. SAP MaxDB is available for the most prominent operating system/hardware platforms Microsoft Windows, Linux, and Unix.
Today, about 20,000 SAP customer installations run on SAP MaxDB and SAP liveCache technology proving SAP MaxDB's reliability, scalability and availability for configurations of all sizes. SAP MaxDB is also widely used within SAP, for example for the Service Marketplace, SAP Content Server, and also SCN runs on SAP MaxDB. SCN currently is one of the largest SAP NetWeaver Portal implementation with far more than 1,000,000 named users, and it runs on SAP MaxDB and Linux-x64.
SAP liveCache technology is an object-based enhancement of the SAP MaxDB database system and was developed to manage complex objects (e.g. in logistic solutions like SAP SCM/APO). For solutions of this type, large volumes of data must be permanently available. Unlike SAP MaxDB, a SAP liveCache instance keeps all data that the system needs to access in memory. It provides data structures and methods for high speed processing of networks, as for example Available-to-Promise (ATP) and Production-Planning-and-Control (PPS). SAP liveCache is patented SAP technology. It can only be used with SAP applications.