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What is a view? Make a view of EMP table named DEPT 20, to display the employees in department 20 and their annual salary.
Ans: View is a virtual table that does not consists of it own data it fetch the data from the original table.
Create view DEPT20 as select * from dept;
Where dno=20 group by dno;
Assume that you are responsible for selecting a new DBMS product for Sohar Hospital
In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
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Increases efficiency : Data is stored close to most often used site, therefore retrieval would be faster. Also, data that is not required by local applications is not stored, there
Which two tools are used to administer users for Active Directory?
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