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Oracle Exadata. The Oracle Exadata Database Machine ( Exadata [1]) is a computing platform optimized for running Oracle Databases . Exadata is a combined hardware and software platform that includes scale-out x86-64 computer and storage servers, RoCE networking, RDMA-addressable memory acceleration, NVMe flash, and specialized software. [2]
The Data Guard Broker is the set of utilities and services that manage Data Guard. Included in the Data Guard Broker are both a GUI interface using Oracle Enterprise Manager and a command-line interface (CLI). The Data Guard Broker is used to set up Data Guard, to manage the configuration, and to monitor Data Guard.
Exalogic is a computer appliance made by Oracle Corporation, commercially available since 2010. [1] It is a cluster of x86-64 -servers running Oracle Linux or Solaris preinstalled. Its full trade mark is Oracle Exalogic Elastic Cloud (derived from the SI prefix exa- and -logic, probably from Weblogic ), positioned by the vendor as a ...
Graph database. A graph database ( GDB) is a database that uses graph structures for semantic queries with nodes, edges, and properties to represent and store data. [1] A key concept of the system is the graph (or edge or relationship ). The graph relates the data items in the store to a collection of nodes and edges, the edges representing the ...
Basic Linear Algebra Subprograms ( BLAS) is a specification that prescribes a set of low-level routines for performing common linear algebra operations such as vector addition, scalar multiplication, dot products, linear combinations, and matrix multiplication. They are the de facto standard low-level routines for linear algebra libraries; the ...
In certain cryptographic hash functions such as RIPEMD-160, the former is less than the latter because RIPEMD-160 use two sets of parallel computation values and then combine into a single set of chaining values. ^ The maximum input size = 2length size − 1 bits. For example, the maximum input size of SHA-1 = 264 − 1 bits.
In computational complexity theory, the linear speedup theorem for Turing machines states that given any real c > 0 and any k -tape Turing machine solving a problem in time f ( n ), there is another k -tape machine that solves the same problem in time at most f(n)/c + 2n + 3, where k > 1. [1] [2] If the original machine is non-deterministic ...
In computability theory, computational complexity theory and proof theory, a fast-growing hierarchy (also called an extended Grzegorczyk hierarchy, or a Schwichtenberg-Wainer hierarchy) is an ordinal-indexed family of rapidly increasing functions f α: N → N (where N is the set of natural numbers {0, 1, ...}, and α ranges up to some large countable ordinal).