Object query language and odmg schema , Database Management System

Assignment Help:

(a) Provide the description of the following ODMG schema in the Object Definition Language (ODL).

1178_data base table.png

(b) Based on the above object database, write the following queries in the Object Query language (OQL):

List the addresses of employees who work in a given department.
List the departments with the number of employees who work in those departments:
List the articles located at more than one department and their prices in each department.

Related Discussions:- Object query language and odmg schema

Hospital managment sysytem, sy bcs project of hospital managment system

sy bcs project of hospital managment system

What three major types of actions includes databases, What three major type...

What three major types of actions includes databases? Briefly discuss these The three major types of actions including databases are: (i) Defining: It includes specifyin

Design a gennalization and specialization hierarchy for an a, Design a genn...

Design a gennalization and specialization hierarchy for an automobile sales company

What is a shadow copy scheme, What is a shadow copy scheme? It is simpl...

What is a shadow copy scheme? It is simple, but efficient, scheme known as the shadow copy schemes. It is based on making copies of the database called shadow copies that singl

What is functional dependency, What is Functional Dependency? A Functi...

What is Functional Dependency? A Functional dependency is shown by X Y among two sets of attributes X and Y that are subsets of R specifies a constraint on the possible tuple

Explain about the guard condition, What is a guard condition? Explain it wi...

What is a guard condition? Explain it with a suitable example. The guard-condition is a Boolean expression written with respect to parameters of triggering event and attributes

Attribute, a set of possible data value of an attribute is called??

a set of possible data value of an attribute is called??

Type of views-data control, Type of views : Simple views and Difficult ...

Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One

What are the properties in a relation, What are the properties in a relatio...

What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.

What are the parts of sql language, What are the parts of SQL language? ...

What are the parts of SQL language? The SQL language has various parts: data - definitition language Data manipulation language View definition Transaction contr

Write Your Message!

Name

Email id

Message

Verfication Code

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

User Account

All Pages