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Mention the several levels in security measures. A) Database system B) Operating system C) Network D) Physical Human
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
Event Occurrence of a process is called event. In other words, the object can receive many input instructions. The changes which occur due to these instructions are known as e
Query Processor The query language processor is responsible for taking query language statements or shifting them from the English-like syntax of the query language to a form
Fundamentals of Database Management 1. Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls? 2. With a necess
What is authorization graph? Passing of authorization from single user to another can be shown by an authorization graph.
how draw er diagram
What are the technique to define a schema completely ? A schema is completely define by DDL and DML query language.
Candidate Key: In a relation R, a candidate key for R is a subset of the set of attributes of R, which have the differnt two properties: (1) Uniqueness: N
need requirement analysis for database management of stock market
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