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Question 1 What do you mean by database management system? Question 2 Write a note on Object-Oriented Model Question 3 Explain Sequential File Organization Question
What are called index-sequential files? The files that are ordered sequentially with a primary index on the search key are known as index-sequential files
what is Mapping Constraints? with examples
Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info
The Transactions- A transaction is definite as the unit of work in a database system. Database systems that deal with a huge number of transactions are also termed as transaction p
What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a
A relation has: Relational Schema Relation instance Relational Schema: A relational schema shows the relation's name, its attributes and the domain of every a
Create a view emp_dep containing e_name and number of dependents from the tables employee and dependent of (i) CREATE VIEW emp_dept AS SELECT ename, COUNT(*) FROM employee, dep
assignment
Give detail description on Transactions. - Using transactions we can group all SQL commands into a single unit. - Transaction begins with some task and finishes only when a
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