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Describe Database state in details?
Database state: The actual data within the database at a particular moment in time is known as a database state.
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
The functions of DBA ?
List any eight applications of DBMS. a) Universities b) Airlines c) Banking d) Credit card transactions e) Tele communication f) Sales g)Finance h) Manufac
we need example of 2phase locking
How to reduce data redundency
Whenever the LIMIT clause will be used? LIMIT is used for the following kinds of problems: 1) Answering questions about first or last and largest or smallest 2) Splitting
Consider the table student and list names of students in the departments other than maths and computer. SELECT std_name FRM student WHERE dept_name NOT IN (‘Maths','Computer);
Explain the integrity constraints: Not Null, Unique, Primary Key with an example each. Is the combination 'Not Null, Primary Key' a valid combination. Justify. Not Null - Shou
What is a database? Database - Basically in simple terms A database is a collection of inter related data and/or information stored so which it is available to several users
Set Difference If R1 and R2 are two union compatible relations or relations then result of R3 =R1- R2 is the relation that have only those tuples that are in R1 but not in R2.
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