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Which is another name for weak entity?
Child is another name of weak entity.
Define Physical and Logical independence Ans: Physical data independence: The ability to modify physical level without causing application program to be rewritten. Logic
Objectives After Reading this part, you should be able to: Explain the term CONCURRENCY; Describe the term transaction and concurrent transactions; Talk about co
please describe the data base management with the easy example &give the application?
You are required to implement integrity constraints within the database to enforce the following requirements: For Projects: Start date must be supplied. Start date cannot be i
How Relational Calculus is different from Relational Algebra? What do understand by TRC queries and DRC queries? Ans: Relational calculus contain two calculi, the tuple relati
Hello.I have database access assignment which consist of creation Form, Subform, Calculation, Macros
What is relationship? Give examples A relationship is an association between several entities. Example: A depositor relationship associates a customer with every account tha
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
Three Level Architecture of DBMS or Logical DBMS Architecture The logical architecture defines how data in the database is perceived by users. It is not deals with how the da
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
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