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Data Manipulation Language
Data manipulation language (DML) describes a set of commands that are used to query and change data within existing schema objects. In this case commit is not implicit that is alters are not permanent till explicitly committed. DML statements having of SELECT, UPDATE, INSERT and DELETE statements.
What is Specialization? Specialization: Specialization permits you to describe new types of information (new structural types or latest domains of information), although reusin
Explain the two constraints, check and foreign key in SQL along with an example for each. Give the syntax. CHECK constraint - CHECK constraint specifies an expression which
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give some example real life situation where DBMS are most suitable
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What is called as an N-way merge? The merge operation is a generalization of the two-way merge used by the standard in-memory sort-merge algorithm. It merges N runs, so it is k
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