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

Database systems have many opposite efforts, Database systems have many op...

Database systems have many opposite efforts ?

#normalisation.., define normalisation and functional dependency

define normalisation and functional dependency

Explain different addressing modes of 8086, 1. Explain different addressing...

1. Explain different addressing modes of 8086 Explanation of all addressing modes 2. Write a sequence of instructions to exchange two register contents using stack

Column constraints-on delete cascade, CREATE TABLE prodtrans ( pno ...

CREATE TABLE prodtrans ( pno number (4) ptype char (1) CHECK (ptype in ('I','R','S')), qty number (5) FOREIGN KEY pno REFERENCES product (pno) ON DELETE CASCADE);

Types of attributes, Attributes attached to an entity can be of various typ...

Attributes attached to an entity can be of various types. Simple The attribute that cannot be further separated into smaller parts and shows the basic meaning is known as a

Illustrate package classes and associations into models, Package classes an...

Package classes and associations into models Programs are made of separate physical units which could be edited, imported, complied or otherwise manipulated. The careful part

What do you understand by raid, What do you understand by RAID? Explain RA...

What do you understand by RAID? Explain RAID Level 4 and Level5? RAID - It is stands for Redundant Array of Inexpensive Disks (as named by the inventor), or alternatively Re

Differences between structured data and unstructured data, Explain the diff...

Explain the differences between structured data and unstructured data. Structured data are facts concerning objects and events. The most significant structured data are numeric

Produce a logical database design for pharma, Using a database design appro...

Using a database design approach of your choice, produce a logical design for Pharma. 1) Your answer must consist of ONE the following: An entity-relationship (ER) diagra

Limitations of dbms, what are the limitations of dbms?

what are the limitations of dbms?

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages