Automatic generation of virtual database schemas

A database system, comprising:

• a plurality of source databases;
• a metadata manager component that facilitates creation of a first data tag and a second data tag, wherein the first data tag includes an indication of a first data vector that identifies wherein a first of the plurality of source databases a first item of data is stored, and wherein the second data tag includes an indication of a second data vector that identifies wherein a second of the plurality of source databases a second item of data is stored;
• a schema definition manager component that facilitates creation of a data entity, wherein the data entity includes a grouping of the first data tag with the second data tag;
• a virtual schema generation service component that utilizes a computer processor that is a component of a computing device so as to generate a virtual database schema, wherein generating the virtual database schema comprises analyzing the data entity and, based on the grouping of the first data tag with the second data tag, automatically generating and storing a database query statement that, when executed, causes a retrieval of the first and second items of data.