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Aggregation: One limitation of the E-R diagram is that they do not permit representation of relationships between relationships. In such a case the relationship along with its entities are promoted (aggregated to form an aggregate entity which can be used for expressing the needed relationships).
The C_Artist application will be developed using the C language (C99 standards) and will be able to compile without warnings and link and run in the Swinburne computer laboratorie
cardnality ratio for humanresource mangement system
What is the difference between the function module and a normal ABAP/4 subroutine? In contrast to normal subroutines function modules have uniquely exact interface. Declaring da
Create role named role_table that allows a user to create tables. Using role_table allow users kripa and reena to create tables. CREATE ROLE role_table; GRANT CREATE ANY TABLE
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
Explain the two constraints, check and foreign key in SQL along with an example for each. Give the syntax. CHECK constraint - CHECK constraint specifies an expression which
A student entity type has the following attributes,name..
#A multinational tour operator agency has gained new business growth in the North American market through the use of social media. Its operation has expanded by 50% within six mont
Which database object does not physically exist? A view database object does not physically exist.
What is the use of sub queries? A sub query is a select-from-where expression that is nested with in another query. A common use of sub queries is to do tests for set membershi
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