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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 are aggregate functions? And list the aggregate functions supported by SQL? Aggregate functions are functions that take a collection of values as input and return a one va
The Database administrator (DBA) uses the data dictionary in each phase of a database life cycle, beginning from the data gathering phase to the design, execution and maintenance p
Consider the subsequent relation schemes: Project (Project#, Project_name, chief_architect) Employee (Emp#, Empname) Assigned_To (Project#, Emp#) Give expression i
to develop elrctronic database from manual forms
how to design tables
Benefits: It limits data access. It makes difficult queries look easy. It permits data independence. It presents dissimilar views of the similar data.
note on hashing technique
what is file organization? what are file organization techniques.explain in detail? explain random file organization technique, multikey file organization technique?what is indexin
Types Of Indexes One of the words used during the file organisation is the term index. In this part, let us describe this term in more detail. We find the index of keywords
Define entity integrity and referential integrity. How does SQL allow specification of these? Ans: Entity Integrity Rule- If the attribute A of relation R is a prime attribut
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