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I need help in doing my dbms project
Foreign Keys and NULL Let us take the relation: DEPT DEPT ID DNAME BUDGET D1 M
It is mandatory that for every table in the LDB hierarchy there should exist one GET statement in the report. False. It is not essential.
Define entity integrity and referential integrity. How does SQL allow specification of these? Ans: Entity Integrity Rule- If the attribute A of relation R is a prime attribut
lock and types of lock
Can you assist me in Database management system? I need help in my courses, please email me at and get back me soon...
Explain the terms primary key, candidate key, alternate key and secondary key. In the given table identify every key? STUDENT(SID,Regno, Name, City) Primary Key: The prim
How external/conceptual mapping and conceptual /internal mapping is performed
Spanned and unspanned organisation? Spanned and unspanned organization: If records are not permited to cross block boundaries then the organisation is called unspanned record
triggering
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