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Write short notes on extension and intension? In any data model, it is significant to distinguish among the description of the database and the database itself the description
what are the limitations of dbms?
Can i get help with weka software
Objectives After Reading this part, you should be able to: Explain the term CONCURRENCY; Describe the term transaction and concurrent transactions; Talk about co
data models are being replaced over years. Reasons and why does that happen?
What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.
Explain the Concept of Two-phase Locking It concerns the positions of locking and unlocking operations in each transaction. In this protocol every transaction issue lock and u
Whst is logical schema ? Logical schema is the entire database.
Database Errors: An error is said to have occurred if the implementation of a command to manipulate the database cannot be successfully finished either due to inconsistent data or
How many types of users works on database? Users are differentiated through the way they expect to interact along with the system (i) Application programmers-interact with
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