Information about each database object is stored in the system tables.
System tables cannot be directly modified and are used by the system to manage and maintain the integrity of the database.
Information in the system tables is used to create, access, modify, and run objects and user data stored in Analytics Database.
The primary system tables include:
- Dbase: This table contains information about every database installed on the system. Database information includes names associated with this database (for example, database name, owner name, and account name), timestamps, passwords, and so on.
- DataBaseSpace: This table contains space allocation for each database.
- TVM and TVFields: These two tables contain information about every table, view, macro, and other objects that are stored in the databases.
- Accessrights: This table contains all of the information about user permissions for each type object stored in the database.
Teradata Vantage™ supports the following database objects:
- Stored Procedures written in SQL and external procedures written in C/C++ and Java.
- User-defined functions (UDFs).
For detailed descriptions of these objects and system objects not covered in this document, see Database Objects.