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Discuss how the one-to-one associations have to be implemented.
Some of properties of associations can be implemented directly by providing suitable declarations of the data members in relevant classes. Other semantic features of association can be enforced by providing only a limited range of operations in a class's interface or by including code in implementation of member functions which ensures that the necessary constraints are maintained.
What is Stored Procedure? A stored procedure is a named group of SQL statements that have been previously formed and kept in the server database. Stored procedures accept input
East Coast Aquarium Relational Database
What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
Define Cascading rollback The phenomenon where a single transaction failure leads to a series of transaction rollbacks is known as Cascading rollback.
10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the delet
List any two disadvantages of a database system ? The disadvantages of database system are: • Database systems are difficult, complex, and time-consuming to design. • Substanti
Consider an information system designed for an online company which provides IT products and services These include desktops, laptops, networking products, IT books, parts, and
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
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
what is physical data structure
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