Hello Dynamics World!
Dynamics NAV has System or Virtual tables, which is not visible in Object Explorer. Object ID range starting from 2000000001..2000000200 and Object Type as Table. In this topic, we will explore more about these virtual tables from Object Metadata.
Object Metadata (Itself a virtual table) has 3 fields for each object,
Metadata, User Code & User AL Code. These fields store information in Blob datatype. Metadata is object definition in xml format, User Code is application code written in C# .Net format and User AL Code store codes which we write in C/AL editor (Developer Environment’s Object Designer).
To know more please review my blog:
https://mrinmax.blogspot.com/2019/04/explore-metadata-user-code-user-al-code.html