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What is called query processing?
Query processing refers to the range of activities included in extracting data from a database.
At its most essential level the DBMS architecture can be divide into two parts: the back end and the front end. The back end is responsible for managing the physical database an
Define the Wait for graph Ans: The wait-for-graph is a directed graph and consist of nodes and directed arcs; the nodes of the graph are active transactions. An arc of the grap
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.
Illustrate the Deployment Diagram A deployment diagram shows all nodes on network, their processor execution and interconnections. In a dynamic model, this is used to represen
Explain the conventions (relationships) for displaying an ER schema as an ER diagram.
Fourth Normal Form (4NF) When attributes in a relation have multi-valued dependency, further Normalization to 4NF and 5NF are needed. Let us first find out what multi-valued d
How does the system cope up with a record crash when recovery is going on after the first crash? Ans: In a system the undo and redo operations are needed to be idempotent to c
Package classes and associations into models Programs are made of separate physical units which could be edited, imported, complied or otherwise manipulated. The careful part
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