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Create a view emp_dep containing e_name and number of dependents from the tables employee and dependent of (i)
CREATE VIEW emp_dept AS SELECT ename, COUNT(*) FROM employee, dependent WHERE employee.e_no = dependant.e_no GROUP BY e_name;
give some example real life situation where DBMS are most suitable
What is key ? Key - A single attribute or a combination of two or more attributes of an entity set which is used to recognize one or more instances (rows) of the set (table) is
To do the division operation R1 ÷ R2, R2 should be a correct subset of R1. In the following example R1 have attributes A and B and R2 have only attribute B so R2 is a correct subse
folding method and mid square method using visual basic
Write a short note on oracle Instance? Oracle Instances: An instance is the (executed) Oracle software and the memory they use. It is the instance which manipulates the data s
About Attribute inheritance
An entity type usually has an attribute whose values are distinct for every individual entity in the collection. Such an attribute is known as a key attribute and its values can be
database help
Project Description: Hi I'm seeking someone to make my dBase application work. I know it's not a 'modern' language but it's what I know. I have written an order program and I ne
Critically evaluate the bulleted list of information-related items in this case study. How are each contradictory to the notion of being an information-literate knowledge worker?
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