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What is called query processing?
Query processing refers to the range of activities included in extracting data from a database.
What is the main advantage of the object model? What are its different components? The object model focuses on the logical data structures. Each object model comprises of many
What is a database graph? The partial ordering implies that the set D may now be viewed as a directed acyclic graph, known as a database graph.
What are the parts of SQL language? The SQL language has various parts: data - definitition language Data manipulation language View definition Transaction contr
What is trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
What are the problems if one were not to normalize? When do these problems surface? Ans: Database normalization, sometimes considered to as canonical synthesis, is
Write short notes on domain relational calculus The domain relational calculus uses domain variables that take on values from an attribute domain rather than values for whole t
Primary Index In primary index, there is a one-to-one relationship among the entries in the index table and the records in the major table. Primary index can be of two types:
Type of database technology
For every n-ary relationship type R where n>2, we make a new table S to represent R. We contain as foreign key attributes in s the primary keys of the relations that show the parti
Differentiate between logical database design and physical database design. Show how this separation leads to data independence? Basis Logical Databas
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