Abstract: A database system comprising a database having a dynamic schema and comprising a plurality of data storage nodes; and at least one processor configured to, using an encryption process: manage access to plaintext data stored in the plurality of data storage nodes by users employing at least one client-controlled resource in a client access layer; restrict access to the plaintext data by other users, wherein the other users include users with system administration privileges for the database and administrators of processing resources hosting the database; and manage access to encrypted copies of the plaintext data by the users with system administration privileges for the database such that the system administration privileges do not enable access to plaintext versions of the encrypted copies. A method for managing data security for a database. A database system with a dynamic schema architecture, a client access layer, and an operational database layer.

Abstract: A database system comprising a database having a dynamic schema and comprising a plurality of data storage nodes; and at least one processor configured to, using an encryption process: manage access to plaintext data stored in the plurality of data storage nodes by users employing at least one client-controlled resource in a client access layer; restrict access to the plaintext data by other users, wherein the other users include users with system administration privileges for the database and administrators of processing resources hosting the database; and manage access to encrypted copies of the plaintext data by the users with system administration privileges for the database such that the system administration privileges do not enable access to plaintext versions of the encrypted copies. A method for managing data security for a database. A database system with a dynamic schema architecture, a client access layer, and an operational database layer.

Abstract: A database system comprising a database having a dynamic schema and comprising a plurality of data storage nodes; and at least one processor configured to, using an encryption process: manage access to plaintext data stored in the plurality of data storage nodes by users employing at least one client-controlled resource in a client access layer; restrict access to the plaintext data by other users, wherein the other users include users with system administration privileges for the database and administrators of processing resources hosting the database; and manage access to encrypted copies of the plaintext data by the users with system administration privileges for the database such that the system administration privileges do not enable access to plaintext versions of the encrypted copies. A method for managing data security for a database. A database system with a dynamic schema architecture, a client access layer, and an operational database layer.

Abstract: A database system comprising a database having a dynamic schema and comprising a plurality of data storage nodes; and at least one processor configured to, using an encryption process: manage access to plaintext data stored in the plurality of data storage nodes by users employing at least one client-controlled resource in a client access layer; restrict access to the plaintext data by other users, wherein the other users include users with system administration privileges for the database and administrators of processing resources hosting the database; and manage access to encrypted copies of the plaintext data by the users with system administration privileges for the database such that the system administration privileges do not enable access to plaintext versions of the encrypted copies. A method for managing data security for a database. A database system with a dynamic schema architecture, a client access layer, and an operational database layer.

Abstract: The subject disclosure relates to load balancing systems and methods. In one embodiment, a reactive load balancer can receive feedback from a first database node, and allocate resources to the first database node based, at least, on the feedback. The feedback is dynamic and comprises information indicative of a load level at the first database node. In some embodiments, the feedback includes information indicative of a load level at a second, under loaded, database node. In other embodiments, load balancing is performed by an overloaded node polling a set of devices (e.g., cell phone, personal computer, PDA) at which resources may be available. Specifically, the method includes polling devices for resource availability at the devices, and receiving price information for resources provided by at least one device. The overloaded node utilizes the resource in response to providing payment of the price. Auction models or offer/counteroffer approaches can be employed.

Abstract: Caching architecture that facilitates translation between schema data and relational structures. A schema translation component consumes schema data (e.g., XML schema data) having a schema structure. The schema structure is shredded into tables. A validation component interfaces to a memory management interface to facilitate loading only the necessary components to perform instance validation. During validation, only parts of the schema that are used are loaded and cached. A schema cache stores the in-memory representation of the schema optimized for instance validation. The schema components are loaded from metadata into the cache memory as read-only objects such that multiple users can use the in-memory objects for validation.