Bone metastasis happens in people who have cancer that forms in another part of the body. Cancer cells from that area break away and travel through the bloodstream and lymphatic system. When the cancer spreads to distant body organs, this is called metastasis.
Teradata. A multidimensional database (MDB) is a type of database that is optimized for data warehouse and online analytical processing (OLAP) applications. Multidimensional databases are frequently created using input from existing relational database s.pproaches to how data is stored and the user interface vary. Conceptually, a multidimensional database uses the idea of a data cube to represent the dimensions of data available to a user.
A relational database is a digital database whose organization is based on the relational model of data, as proposed by E.F. Codd in 1970.ach database is a collection of tables, which are called relations, hence the name relational database. Each table is a metaphorical representation of an entity or object that is in a tabular format consisting of columns and rows.