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

Determine set of minimal functional dependency-normalization, 1. Determine ...

1. Determine the set of minimal functional dependencies for the following data. The local bakery, Happy Cakes, needs your help designing a database that will support a kiosk in

Database Management System, Assume that you are responsible for selecting a...

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

Describe in brief about object oriented design, Describe about Object orien...

Describe about Object oriented design Object oriented design is concerned with developing an object oriented model of a software system to implement known requirements. Many OO

Describes the several relationship constraints, Describes the several relat...

Describes the several relationship constraints through giving suitable example? Constraints on relationships: There are two kinds of constraints on relationships. 1) Mapping

What are the various states of transaction process, What are the various st...

What are the various states through which a transaction passes through in its lifetime? Briefly discuss all the events that causes transition from one state to another. Ans:

Which is the properties of entities, Which is the properties of entities? ...

Which is the properties of entities? Attributes is the properties of entities.

Isolation or independence-transaction , Isolation or Independence : The iso...

Isolation or Independence : The isolation property shows that the updates of a transaction should not be visible till they are committed. Isolation assurance that the progresses of

ER Modeling, explain ER Modeling?

explain ER Modeling?

Weak entity, Entity types that do not have any key attribute, and therefore...

Entity types that do not have any key attribute, and therefore cannot be identified independently, are known as weak entity types. A weak entity can be recognized uniquely only by

Draw an er diagram for organization of a student database, Draw an ER diagr...

Draw an ER diagram that shows the organization of a simple student database. The database captures the information about letter grades obtained by university students who enrolled

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages