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Define object-relational systems?
Systems that give object-oriented extensions to relational systems are known as object-relational systems.
entity relationship diagram for online examination system
Write A short note on temporary tables? Temporary Tables - Temporary tables exists solely for a particular session, or whose data persists for the duration of the transaction
What are axioms? Axioms or rules of inference give a simpler technique for reasoning about
01a_Broadway_LastFirst_yyyy-mm-dd Capstone Exercises You work as a production assistant in the office of the Green Man Theatre. One of your duties is to maintain the company datab
Benefits of Hashed file Organisation 1. Insertion or search on hash-key is quick. 2. Best if equality search is required on hash-key. Drawbacks of Hashed file
Consider the subsequent relation schemes: Project (Project#, Project_name, chief_architect) Employee (Emp#, Empname) Assigned_To (Project#, Emp#) Give expression i
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
aggregation
what is database management system? & why it is required?
Backward Recovery (UNDO): In this system the uncommitted changes made by a transaction to a database are undone. Instead the system is reset to the last consistent state of databa
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