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What are the properties in a relation ?
In a relation Ordering of rows is immaterial and No two rows are identical.
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);
Haw does it work one database application
Relational and E-R Model There are three types of constraints on relational database that have: DOMAIN CONSTRAINT PRIMARY KEY CONSTRAINT INTEGRITY CONSTRAINT
explain external view
What is the most significant feature that does not directly map into programming language structures? Why? Association, since there are complex types of association, like as qu
Synonyms and Indexes Some of the essential properties of indexes are: An Index is a schema Object Indexes can be formed explicitly or automatically Indexes are m
I want to buy this but I want to see a couple sample questions first. http://www.expertsmind.com/library/what-happens-to-rms-error-for-the-training-data-set-51564843.aspx
Hello.I have database access assignment which consist of creation Form, Subform, Calculation, Macros
Define Signal. It allows methods to respond to events triggered by themselves or by other processes. Each signal corresponds to an exacting event. A signal is represented in Sy
Which method is used to key transformation ? A hash method is used to key transformation.
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