System and method for selective execution of statements with surrogate authority

Abstract

A selective execution system allows a user to grant a lesser authority to individuals for normal use, but allow them the ability to use a higher level of authority while completing dependent object redefinition. The present system grants the limited ability to recreate dropped objects or views without allowing the user to redefine the object or view. A modification detection code (MDC) is generated for each statement in the tables and dependent views and written to the electronic media. Each party or program along the execution path can read the statement and validate its integrity by regenerating a MDC for the statement and comparing it to the original. If the MDCs match, the statement's integrity is assured and processing can take place accordingly. If the MDCs do not match, alternative processing can take place. Just prior to an statement's execution, the MDC comparison is made to ensure the statement is unaltered and can be processed as desired, such as with the higher authority. If the MDC values do not match or the original MDC value is absent, the statement is deemed altered and can be processed as desired: either the statement will not be executed or it will be executed with the lesser authority.

Dependencies are inferred from the claim text.