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Task Partitioning, Sequencing and Project Planning The tasks required for the service might be broadly partitioned into: 0. Set up database tables and account file
What are composite objects? Objects that have other objects are known as complex objects or composite objects.
Describe Object Relational model ? Object Relational Model - This model combines the characteristics of both relational model and object oriented model. It extends the tradit
Define Database layer? The database layer defines the data formats used in the database.
external and internal mapping with examples
What is a foreign key, and what is it used for? A foreign key is used to establish relationships between relations in the relational model. Technically, a foreign key is a colu
Explain the function of Object model Object model describes the classes of objects in system, including their attributes and operations which they support. The analysis object
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
For each m:n relationship type R, we make a new table (say S) to represent R. We also contain the primary key attributes of both the participating entity types as a foreign key att
Serialisability: Any schedule that makes the similar results as a serial schedule is known as a serialisable schedule. But how can a schedule are determined to be serialisable or n
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