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What is object identity?
An object retains its identity even if some or all the values of variables or explanations of methods change overtime.
How many levels can be viewed in Architecture of the database ? Architecture of the database can be viewed as three levels.
While using extract datasets it is required to have a special workarea for interface False. It is not required to have a special workarea for interface
It can be easily defined as: The database must not have any unmatched foreign key values. The term "unmatched foreign key value" means a foreign key value for which there doe
East Coast Aquarium Relational Database
Express the following queries in SQL: (a) Write the SQL code that will create ALL the four tables given in the appendix. Your answer should not contain the primary key and
Derived horizontal fragmentation: Some applications may include a join of two or more relations. If the relations are stored at dissimilar locations, there may be a major overhead
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
Develop C# schoolproject ASAP Helping me with schoolproject. The project is prepared in C# and haves a database connection. We have some small issues asking up data from t
Explain Foreign Key? Foreign Key - Let there are two relations (tables) R and S. Any candidate key of the relation R that is referred within the relation S is known as the fo
Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod
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