Oracle International Corporation

Ho Chak Hung

Kumar Rajamani

Jaebock Lee

Russell John Green

Shrikanth Shankar

Susan M Kotsovolos

Subhransu Basu

Rajagopalan Govindarajan

Guhan Viswanathan

Versioned metadata allows multiple versions of metadata for a given object to exist concurrently on a system thereby supporting the parallel execution of operations which would otherwise be mutually exclusive. Metadata updates are permitted while other objects maintain access to another version of the metadata through a versioning infrastructure. The versioning infrastructure allows the creation of new versions of metadata, maintains obsolete versions in the system as long as they are being used by any object, and deletes the obsolete versions once they are no longer in use.

System and method for managing versions of metadata

A method and apparatus for updating databases are disclosed. An update vector for an object is created for identifying updated attributes. A dependent object is identified and a dependency vector of the dependent object is compared with update vector to determine whether the dependent object depends on the updated attributes.

Finer grain dependency tracking for database objects

Growing community of inventors

Redwood City, CA, United States of America

Ho Chak Hung