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Drawbacks of Database systems ?
Why is database redesign necessary? Database redesign is essential for two reasons. First, redesign is essential both to fix mistakes made during the initial database design. S
Entities Let us first be aware of the question: What are entities? An entity is an object of concern used to show the things in the actual world, e.g., table, car, bo
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
A database has been designed for this beauty parlour in order for the staff to manage specific things such as bookings made by clients, payments, staff availability, level of exper
how to prepare a data dictionary for online examination system for certified courses?
how design database from begining
Views in relational algebra: 1. Basic expression contains either a) A relation in the database. b) A constant relation. 2. General expressions are madde out of sma
Question 1 Suppose the employee employee id, name, designation, salary, attendance and address of any employee has to be stored in a database. You can store these data in a sequen
State the Object Design for Processing The object design phase comes after analysis and system design phase. The object design phase includes implementation details like as i
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