Selectively switching memory access permission for manipulating

Data processing: database and file management or data structures – Database design – Data structure types

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707 1, 707 2, 707 8, 707 10, 707103, G06F 1730

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058954678

ABSTRACT:
Routines for manipulating data in a database are performed by a database server by determining whether or not a database manipulation routine is to be isolated from a specified range of memory, and, in response, selectively switching memory access permission to the specified range of memory (e.g., from read/write to read-only) for the database manipulation routine under consideration. The database manipulation routine is then executed using the selectively switched memory access permission. A database manipulation routine that is to be isolated can be executed with read-only memory access thereby protecting the specified range of memory (e.g., corresponding to core data structures) from improper modification.

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