Determine the persistent object, Database Management System

Assignment Help:

Determine the Persistent object

Persistent object can be stored in one of the following:

Files

Cheap, permanent, simple storage
Low level (Write, Read)
Applications must add a code to provide a suitable level of abstraction.

Relational database

Standardized and easy to port
Supports multiple writers, readers
Mature technology

Object database

One-to-one mapping from analysis model
Associations are straight represented
Slower than relational databases for the complex queries

Related Discussions:- Determine the persistent object

#mapping constraints, explain the mapping constraints

explain the mapping constraints

Describe the types of inheritance, Describe the types of Inheritance ...

Describe the types of Inheritance 1. Single inheritance 2. Multiple inheritance 3. Hierarchical inheritance 4. Multilevel inheritance

Define thomas write rule, Define Thomas write rule Thomas' write rule: ...

Define Thomas write rule Thomas' write rule: The Thomas' write rule is a modification of timestamp-ordering protocol for concurrency control. Assume that transaction T i issue

Er diagram, er diagtram for icici

er diagtram for icici

Field, examples of fields in a database

examples of fields in a database

Explain the term - adjustment of inheritance, Explain the term - Adjustment...

Explain the term - Adjustment of inheritance The inheritance can be enlarged as object design progresses by changing class structure. The designer should do: i) Adjust or r

What are advantages of object-oriented programming paradigm, What is the ma...

What is the major advantage of object-oriented programming paradigm? The ability to modify the explanation of an object without affecting the rest of the system is the main adv

What are the time stamps associated with each data item, What are the time ...

What are the time stamps associated with each data item? W-timestamp (Q) denotes the largest time stamp if any transaction that implemented WRITE (Q) successfully. R-timesta

Strong entity set and weak entity set, Strong entity set and weak entity se...

Strong entity set and weak entity set? Strong entity set and weak entity set: A strong entity set has a primary key. All tuples in the set are distinguishable through that key.

Queries, Find the names of all Albums that have more than 30 tracks. Result...

Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))

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