Define the terms physical schema and logical schema., Database Management System

Assignment Help:

Define the terms 1) physical schema 2) logical schema.

Physical schema: The physical schema explains the database design at the physical level, which is the lowest level of abstraction describing how the data are actually stored.

Logical schema: The logical schema explains the database design at the logical level, which explains what data are keeps in the database and what relationship exists between the data.

Related Discussions:- Define the terms physical schema and logical schema.

Give concurrent sub states diagram for the classroom, Give Concurrent sub s...

Give Concurrent sub states diagram for the classroom and exam held. In Figure, simultaneous substrates have been taken. After passing Minor 1 test you could give Minor 2 test. T

Answer, Describe multi key files

Describe multi key files

Insert statement reverses storage space and transfers value, A field-groups...

A field-groups statement or an insert statement reverses storage space and transfers values. False.

In oracle what is system global area and how is it organized, In Oracle wha...

In Oracle what is system global area and how is it organized? The SGA is a collection of shared memory fields which along with the Oracle processes constitute an Oracle instan

Mixed fragmentation, Mixed fragmentation: Sometimes, horizontal fragmentati...

Mixed fragmentation: Sometimes, horizontal fragmentation or vertical fragmentation of a database schema by itself is insufficient to sufficiently distribute the data for some appli

Write a query to find name from the relational algebra, Consider the relati...

Consider the relations City (city_name, state) Hotel (name, address) City_hotel (hotel_name, city_name, owner) Answer the following queries in relational algebra (i) Find

How we can implement relationships when designing tables, You want to imple...

You want to implement following relationships when designing tables. How would you do it? a.) One-to-one b.) One-to-many c.) Many-to-many a.) One-to-One relationship -

Icloud based storage, Advantages and disadvantages of icloud based storage

Advantages and disadvantages of icloud based storage

Create table statements for original database, MySQL statements for extendi...

MySQL statements for extending the database to incorporate new facilities Deliverables for submission You must submit the following deliverables in the Assignment Dropbox in

What is a primary key, What is a primary key? Primary key is chosen by ...

What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages