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What is E-R model?
This data model is based on real world that having of basic objects called entities and of relationship between these objects. Entities are explained in a database by a set of attributes.
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
Find out the names and company names of all employees sorted in ascending order of company name and descending order of employee names of by which company. SELECT EMPLOYEE_NAME,
Question: This Question refers to the database schema given in the Appendix. (a) The integrity of a database is enforced by integrity rules. Discuss what should happen on a
Data Mining 1. What is data mining? Write Data Mining applications. 2. Explain OLAP? Write the benefits of OLAP. 3. What are the key features of a Data Warehouse? 4. W
how to operate database in access ?
What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
Preliminary entities and attributes of human resourse management database management system
what is attribute is attribute inheritance in dbms?
what is Storage-Device Hierarchy question
What is Specialization? Specialization: Specialization permits you to describe new types of information (new structural types or latest domains of information), although reusin
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