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The need for efficiency has led database system developers to use complex data structures to represent data in the database.

Which of the following is a function of operations management?

A typical file-processing system is supported by a conventional operating system. The system stores permanent records in various files, and it needs different application programs to extract records from, and add records to, the appropriate files. Keeping organizational information in a file-processing system has a number of major disadvantages. Which one from the choices is not a disadvantage of a typical file-processing system?

Consider the Subgraph Isomorphism problem: Input: two undirected graphs G and H.Output: determine whether G is a subgraph of H (that is, whether by deleting certain vertices and edges of H we obtain a graph that is, up to renaming of vertices, identical to G). The Subgraph Isomorphism problem can be shown to be NP-hard because it is a generalization of

Modern database systems exploit commonalities in the structure of data to gain efficiency but also allow for weakly structured data and for data whose formats are highly variable.

Which of the following problems are bounded in the region S? (check all that apply)

Consider the LP problem:

There is a  polynomial time reduction from SAT to B.

The collection of data, usually referred to as the ____, contains information relevant to an enterprise

Logical level is the highest level of abstraction describes only part of the entire database.