super key

super key

(1) Two or more columns (fields) in a relational database that identify a row in the table. See primary key.

(2) (Super key) The Windows key on keyboards when it is used with PCs running Linux and BSD operating systems.

(3) (SuperKey) An earlier PC keyboard macro processor from Borland that lets users create keyboard macros, rearrange the keyboard and encrypt data and programs.
References in periodicals archive ?
OOREDOO has announced on Sunday that its Hala India super key will now be a permanent service.
Having a fair Certification authority (CA) authorizes a super key to each user, the super key could be utilized to prove the user having a legal key and to verify the identity so as to ensure the security, authenticity, reliability, and completeness transmission of information.
"We can achieve true ripeness: That's super key," Daou insisted.
* A super key is a set of attributes which will uniquely identify each tuple in a relation.
An alternative (simpler) definition is a relation is in 3NF if in every non-trivial dependency X [right arrow] A either X is a super key or A is a key attribute (i.e., A is contained within a candidate key).
1) A polynomial 'P' is generated by the source with degree 'k' where the constant term in the polynomial is considered to be the super key.
3) Then it checks the genuineness of the node by substituting the keys received, in the scheme and if it arrives to the super key then the nodes that have sent the key are said to be genuine nodes.
Focusing on the area of credit and collections however, there is what might be called Super Key Performance Indicators of interest to credit managers.
Joe Melton Morgantown Super Key (B) Morgantown, Ky.
The new Hala Key the Hala India Super Key offers Ooredoo's best rates to India yet, with calls to any network in the country costing just 9 Dhs per minute, and calls to any local number in Qatar costing 25 Dhs per minute.
Our system extracts the super key, candidate key and functional dependencies from the student answer table based on the training data.
* BCNF : Table(x) [conjunction] Third Normal Form(x) [conjunction] FD (x,fd) [conjunction] LHS (x,fd_lhs) [conjunction] Super Key (fd_lhs) [right arrow] BC Normal Form (x) [In an FD X [right arrow] A, X should be a super key]