Explore topic-wise fullforms in Database Management

INFO: Full form for TIM is Transaction Integrator Metadata in Database Management category
TIM also has other full forms in other categories mentioned below.

A foreign key is a set of attributes in a table that refers to the primary key of another table. The foreign key links these two tables. Another way to put it: In the context of relational databases, a foreign key is a set of attributes subject to a certain kind of inclusion dependency constraints, specifically a constraint that the tuples consisting of the foreign key attributes in one relation, R, must also exist in some other (not necessarily distinct) relation, S, and furthermore that those attributes must also be a candidate key in S. In simpler words, a foreign key is a set of attributes that references a candidate key. For example, a table called TEAM may have an attribute, MEMBER_NAME, which is a foreign key referencing a candidate key, PERSON_NAME, in the PERSON table. Since MEMBER_NAME is a foreign key, any value existing as the name of a member in TEAM must also exist as a person's name in the PERSON table; in other words, every member of a TEAM is also a PERSON.

INFO: Full form for DDO is Data Dictionary Object in Database Management category
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INFO: Full form for GC is Global Constant in Database Management category
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INFO: Full form for PST is Personal Storage Template in Database Management category
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INFO: Full form for GIC is Generalized Information Criterion in Database Management category
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INFO: Full form for ASD is Active System Development in Database Management category
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INFO: Full form for ASD is Action Semantic Description in Database Management category
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INFO: Full form for ASD is A Secure Dbms in Database Management category
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Data envelopment analysis (DEA) is a nonparametric method in operations research and economics for the estimation of production frontiers. It is used to empirically measure productive efficiency of decision making units (DMUs). Although DEA has a strong link to production theory in economics, the tool is also used for benchmarking in operations management, where a set of measures is selected to benchmark the performance of manufacturing and service operations. In benchmarking, the efficient DMUs, as defined by DEA, may not necessarily form a “production frontier”, but rather lead to a “best-practice frontier” (Charnes A., W. W. Cooper and E. Rhodes (1978)).

In contrast to parametric methods that require the ex-ante specification of a production- or cost function, non-parametric approaches compare feasible input and output combinations based on the available data only. DEA, as one of the most commonly used non-parametric methods owes its name to its enveloping property of the dataset's efficient DMUs, where the empirically observed, most efficient DMUs constitute the production frontier against which all DMUs are compared. DEA's popularity stems from its relative lack of assumptions, ability to benchmark multi-dimensional inputs and outputs as well as computational ease owing to it being expressable as a linear program, despite aiming to calculate efficiency ratios.

INFO: Full form for GC is Global Context in Database Management category
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INFO: Full form for GC is Garbage Cleanup in Database Management category
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INFO: Full form for RIM is Rdbms (relational Database Management System) Interface Module in Database Management category
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