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What is a view?
A view is a logical view on one or more tables. A view on one or more tables i.e., the data from a view is not actually physically kept instead being derived from one or more tables.
Hi I have got an assignment for making an er diagram for market management software can any budy help me?
various techniques of hashing?
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);
List the set operations of SQL? 1) Union 2) Intersect operation 3) The except operation
Why do you go for sorting your query results? SQL SELECT command to fetch data from MySQL table. Whenever you select rows, the MySQL server is free to return them in any order
what characterizes the levels in RAID technology
Question: Describe briefly the three parts of the Relational Model. (a) The term integrity refers to the accuracy or correctness of the data in the database. Define the fol
In a relation, tuples are not inserted in any definite order. Ordering of tuples is not defined as a part of a relation definition. Though, records may be structured later accordin
The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
Explain the components of Database System in details.
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