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An ideal data dictionary should have everything a DBA wants to know about the database. 1 Conceptual, External, and internal database descriptions. 2. Descriptions of attr
Consider an information system designed for an online company which provides IT products and services These include desktops, laptops, networking products, IT books, parts, and
(a) Why did SAP introduce the extended star schema?
For the question given below, you are required to submit design and implementation documentation as described over the page. Design, implement (in Java), test and document a set of
find a name whose address is erode from student table
Briefly explain what is to be done during defining problem statement. To define Problem Statement of a system, define what is to be done and how you can go to implement that. Y
what is cascading rollback
Define the terms i) Entity set ii) Relationship set Entity set: The set of all entities of the similar type is termed as an entity set. Relationship set: The set of all rela
Explain the Weak Entity Set An Entity set which does not have sufficient attribute to make a primay key is known as weak entity set. For instance, dependents of an employee in
Let us first look into some of the important features of ER model. Entity relationship model is a high-level conceptual data model. It permits us to define the data invo
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