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Question 1 Explain ER model
Question 2 What are the characteristics of a computer provided information?
Question 3 What are facts and guidelines to be considered when selecting a character set?
Question 4 Explain
Question 5 Write an SQL query to create the student table with the necessary columns and check whether that column allows null values.
Question 6 Create a student table with the following attributes Student name, student roll no, 5 different subjects. Write SQL query for the following conditions
What is storage manager? A storage manager is a program module that gives the interface between the Low level data kept in a database and the application programs
Drawbacks of Data Distribution: The primary drawbacks of distributed database systems are the added complexity needed to ensure proper coordination between the sites. This increas
CAR SALE (Car_id, Option_type, Option_listprice, Sale_date, Option_discountedprice) This relation refers to options installed in cars (e.g., cruise control) that were sold at a de
Unrepeatable reads : Assume T7 reads X twice during its implementation. If it did not update X itself it could be very disturbing to see a dissimilar value of X in its next read. B
basic structure of xml
Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
Normalization :It is a process of examine the given relation schemas based on their primary key and Functional Dependencies (FDs) to achieve the properties Minimizing redun
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
entity relationship diagram for online examination system
What is an entity relationship model? The entity relationship model is a collection of basic objects known as entities and relationship between those objects. An
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