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What are the properties of transaction? There are three properties of transactions :- A) Atomicity B) Consistency C) Isolation
Consider the E/R schema with weak entity sets shown below. Come up with the SQL CREATE TABLE statements (with appropriate primary key, unique and foreign key constraints). Include
This project will involve designing and creating a database for an organization. In the design of a database, there is no single "perfect" design. So your database design may not
what is cascading? what is rollback cascading? please explain in detail
How to create a biological database based on viruses. How to decide which attribute should be there in the table and schema? How to identify the primary keys, foreign keys, domain,
a. Define the term "deadlock". There are four conditions that must hold before deadlock is possible. Name them. b. Outline an algorithm that detects whether there is a deadlock.
Explain the following functions of Oracle with suitable examples: (i) To_Char( ) (ii) Count( ) (iii) Trim( ) (iv) Length( ) Ans: (i) To_char( ): The TO_CHAR function conver
Load sample data into the database tables design and test queries to return the following information • All rows and columns for employees • All rows and columns for customers •
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
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