A virtual private database or VPD masks data in a larger database so that only a subset of the data appears to exist, without actually segregating data into different tables, schemas or databases. A typical application is constraining sites, departments, individuals, etc. to operate only on their own records and at the same time allowing more privileged users and operations (e.g. reports, data warehousing, etc.) to access on the whole table.
The term is typical of the Oracle DBMS, where the implementation is very general: tables can be associated to SQL functions, which return a predicate as a SQL expression. Whenever a query is executed, the relevant predicates for the involved tables are transparently collected and used to filter rows. SELECT, INSERT, UPDATE and DELETE can have different rules.
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A virtualprivatedatabase or VPD masks data in a larger database so that only a subset of the data appears to exist, without actually segregating data...
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Oracle Database (commonly referred to as Oracle DBMS, Oracle Autonomous Database, or simply as Oracle) is a proprietary multi-model database management...
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difference between air humidity and saturation Virtualprivatedatabase, masks data in a larger databaseVirtual product development, developing and prototyping...
computing, virtualization or virtualisation in British English (sometimes abbreviated v12n, a numeronym) is the act of creating a virtual (rather than...
storage space. Virtualprivatedatabase (VPD) – masks data in a larger database so that security allows only the use of apparently private data. Vulnerability...
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Hosted/virtual PBX (hosted and circuit-switched) or traditional Centrex IP Centrex or hosted/virtual IP (hosted and packet-switched) IP PBX (private and...
A virtual economy (or sometimes synthetic economy) is an emergent economy existing in a virtual world, usually exchanging virtual goods in the context...
attachments TC – Virtual encrypted disk container, created by TrueCrypt KODE – Encrypted file, created with KodeFile nSignE – An encrypted private key, created...
Empress Embedded Database, is a privately held company founded in 1979. Empress Embedded Database is a full-function, relational database that has been embedded...
VPN—VirtualPrivate Network VPS—VirtualPrivate Server VPU—Visual Processing Unit VR—Virtual Reality VRML—Virtual Reality Modeling Language VSAM—Virtual Storage-Access...
2006). OSPF as the Provider/Customer Edge Protocol for BGP/MPLS IP VirtualPrivate Networks (VPNs). Network Working Group. doi:10.17487/RFC4577. RFC 4577...
photographs, movies, images, or databases. The server can be accessed by workstations or application servers through the Virtual Fileserver Network (VFN). The...
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and virtualization technology company headquartered in Palo Alto, California. VMware was the first commercially successful company to virtualize the x86...
delivered. But with the Internet in the 1990s came a new type of network, virtualprivate networks, built over this public infrastructure, using encryption to...
concept of the virtual paths (VP) and virtual channels. Every ATM cell has an 8- or 12-bit virtual path identifier (VPI) and 16-bit virtual channel identifier...
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