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What are the storage types?
The storage types are:
a) Volatile storage
b) Nonvolatile storage
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
external and internal mapping with examples
external view of DBMS in healthcare department?
Type of database technology
Consider the subsequent relations for a database which keeps track of business trips of salespersons in a sales office: SALESPERSON (SSN, Name, start_year, Dept_no) TRIP (SSN, Fr
Relational Algebra is a set of basic operations used to influence the data in relational model. These operations allow the user to specify basic retrieval request. The result of re
Self-Join: In a self join a table is joined with itself. Let consider the following sample partial data of EMP table EMPNO ENAME MGRID
Due date for May 8
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
Higher Normal Forms Is there more normal forms beyond BCNF? Yes, though, these normal forms are not based on the concept of functional dependence. More normalisation is needed if
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