Managing databases, Database Management System

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Code an Oracle Database trigger to enforce the constraint that an employee can
never change his or her department.

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Assume that you are responsible for selecting a new DBMS product for Sohar Hospital

Non-redundant cover and canonical cover, Given the following set of functio...

Given the following set of functional dependencies {cf?bg, g?d, cdg?f, b?de, d?c} defined on R(b,c,d,e,f,g) a.Find a non-redundant cover. b.Find a canonical cover.

Applications and goals of dbms, What do you mean by DBMS? What is its need ...

What do you mean by DBMS? What is its need and what are its goals. Explain?        OR   Explain Data Base Management System? Sol.  Database management system is a

What are stored-procedures, What are stored-procedures? And what are the ad...

What are stored-procedures? And what are the advantages of using them? Stored procedures are database objects that perform a user defined operation. A stored procedure can have

Oracle/sql, can you create a database for me in oracle/sql

can you create a database for me in oracle/sql

Set difference, Set Difference If R1 and R2 are two union compatible re...

Set Difference If R1 and R2 are two union compatible relations or relations then result of R3 =R1- R2 is the relation that have only those tuples that are in R1 but not in R2.

The first normal form (1nf), The First Normal Form (1NF) Let us first d...

The First Normal Form (1NF) Let us first describe 1NF: Definition: A relation (table) is in 1NF if 1.      There are no duplicate tuples or rows in the relation. 2.

Explain the advantages of dbms over file oriented system, Explain the main ...

Explain the main advantages of DBMS over File Oriented System ?

Function module, When a function module is activated syntax checking is per...

When a function module is activated syntax checking is performed automatically. YEs, a function module is activated syntax checking.

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