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what is check point in database management system
Difference between Operating System and Database Security Security within the operating system can be executed at various levels ranging from passwords for access to system, t
Economics: It is now usually accepted that it costs less to make a system of smaller computers with the equivalent power of a one large computer. It is more cost-effective to get s
draw ER diagram of student entity and course entity where attribute of student entity are student roll, student name, student phone and student address and attribute of course enti
Nested Queries Let us see some more complex queries in this section. Sub-queries: Some of the basic concerns of sub-queries are: A sub-query is a SELECT statemen
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
Question: (a) Can a set of data requirements be correctly modelled by two or more different ER diagrams? Explain your answer. You may use a small example, if you think it will
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
in case of functional dependencies how we get the higher normal form.
Explain the utilities which help the DBA to manage the database? Every DBA uses database utilities to maintain and control their databases. But there is a lot of confusion wit
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