US Patent 10289636 Virtual table generator for analyzing geographic databases

A method and system for accessing database tables that contain binary large objects (BLOBs) is disclosed. The method includes encapsulating BLOB-based tables with virtual tables, which allows a user to access the content of the BLOBs via SQL. In one example, the virtual table has a generic table structure that consists of columns (e.g., class name, field name, and field value) and information regarding what level of an object hierarchy contains an element. In another example, a user can define the structure of the virtual table by identifying which object attributes to report.