Explain how the object classes are mapped to tableseach, Ask an Expert

Programming

Explain how the object classes are mapped to tables.

Each object class maps to one or more than one tables in the database. The objects in the class may be partitioned horizontally or/and vertically. For instance, if class has many instances of which, a few are often referenced. In this case, horizontal partitioning may improve efficiency by placing the frequently accessed objects in a table, and the remaining objects in another tables. Similarly, if a class has attributes with different access patterns, it may help to partition the objects vertically.

View complete question

DBMS, Programming

Category:- DBMS
Reference No.:- M9580675

Have any Question?Write your Review or question?

Related Questions in DBMS

Data model development and implementationpurpose of the

Data model development and implementation Purpose of the assessment (with ULO Mapping) The purpose of this assignment is to develop data models and map Database System into a standard development environment to gain unde ...

Question we can sort a given set of n numbers by first

Question : We can sort a given set of n numbers by first building a binary search tree containing these numbers (using TREE-INSERT repeatedly to insert the numbers one by one) and then printing the numbers by an inorder ...

You can work on this assignment individually or in a group

You can work on this assignment individually or in a group of 2. If you are working in a group please establish a group in Assignment 2 Group on Canvas In this assignment you are asked to explore the use of neural networ ...

Q1 given the following file for assignment workercom

Q1. Given the following file for assignment worker.com, identify data anomalies that must be removed before data can be loaded in data warehouse. Worker_assignment ← -----------------on course web site File is available ...

Sqlquery 1 how many products have standard price less than

SQL Query 1. How many products have standard price less than 1000? Query 2: Display all attributes for products made of "Cherry" from Product table w/o referring to column names. Query 3: Display all product names having ...

Question 1 unified communications system eg email

Question: 1. Unified Communications System (e.g., email, conferencing, and messaging) - The local area network is slower than needed, especially for newer, cloud-based applications. The email system needs refurbishment a ...

Databases assignment - monash library services monlib case

Databases Assignment - Monash Library Services (MonLib) Case Study TASK 1: Data Definition For this task you are required to complete the following: 1.1 - Add to your solutions script, the CREATE TABLE and CONSTRAINT def ...

Backgrounda new training organization called abc

Background A new training organization called ABC TechTraining is opening soon and they have approached you to help design their new database. They have just completed the refurbishment of the premises and are now lookin ...

Students will select a situation or problem from their

Students will select a situation or problem from their company as a course project that can be solved using a database system. Using MS Access, or MS SQL Server Express, students will create a relational database model o ...

In sql developer onlydeliverables include sql scripts and

In SQL Developer ONLY! Deliverables Include SQL scripts and screenshot of the results: D1. Create the following three user-defined roles that are shown in the table below and assign them the specified permissions for the ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask DBMS Expert