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What are the advantages of object ID?
The main advantages of Object IDs are as below:
i) IDs are not changing
ii) IDs are completely independent of the changes in data value and the physical location
iii) IDs provide uniform mechanism for referencing objects.
what is relationship inheritance and attribute inheritance
Introduction In large projects, we can have many different companies working together. Generally, the project or contract is awarded to one company (Principal Contractor), which
Partial Key : It is a group of attributes that can uniquely identify small entities and that are related to same base entity. It is sometime named as Discriminator. Altern
Explanation on Data Sharing?
what is Nested relational model? Explain with examples.
Submit the SQL Statements necessary to create your database according to the following guidelines: Your SQL statements should exactly mirror your ERD. All primary keys,
Question : (a) Explain with the help of appropriate examples the difference between ‘Data' and ‘Information'. (b) A digital image is an array of pixels, where each pixel h
describe objectivde of file organisation
What is DML compiler? DML Compiler: Translates DML statements in a query language within low level instructions understandable through the query evaluation engine. Attempts to
explain participation constraints with examples
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