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When every condition appears with equality condition (=) only. c)
Natural join (denoted by R*S)
When two join attributes have the similar name in both relations. (That attribute is
Known as Join attribute), only one of the two attributes is retained in the join relation. The join condition in such a case is = for the join attribute. The condition is not given in the natural join.
Home based assignment Consider an ORDER table with the following attributes: • Order Number (ONo),Customer Number (CNo),Customer Name (CNa),Item Number (INo),Unit Price (UP), Quant
Having clause This clause is used for producing conditions on grouped information. Example: Find maximum salary and department number of those departments where maxim
assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
This assignment is worth 45% of your final grade for this module. Marks will be awarded as follows: Prototypes (wireframe and web based prototype) You are expected
Explain outer join? Outer Join - If there are any values in one table which do not have corresponding value(s) in the other, in an equi-join which will not be chosen. Such ro
a need some real life examples of database management systems three level of ANSI SPARC architecture life teacher and student ,company and employee or for NGO etc.
wh
1. Which relational algebra operations do not need the participating tables to be union-compatible? Ans: Join is the relational algebra operations that do not need the particip
Analyzing Association Traversal Association Traversal shall be understood properly for the association design explanation. Analyzing association traversal means analyzing tra
(a) Why did SAP introduce the extended star schema?
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