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What is conceptual schema?
The schemas at the view level are known as subschema that describe dissimilar views of the database.
In which form of relational database developer refers to a record? In a tuple form of relational database developer refers to a record.
What is the use of keyword ISA? The use of keyword ISA is to show that a class is a specialization of another class.
define lock conversion
WHAT IS DBMS
Explain Dynamic Two-Phase Locking Here a transaction locks a data item instantly earlier than any operation is applied on the data item. After finishing all the operations on
Determine the minimal set of functional dependencies for the following data. This table is part of the OHSU database of extracurricular activities and tracks the DMICE band's co
Describe the Association: Design Before we describe association design let us define association "Association is set of links between two objects in the object model". It is
What are the uses of functional dependencies? To test relations to see whether they are legal under a given set of functional dependencies. To state constraints on the set
using the invoice table shown below,write the relational schema,draw a dependencies,inclunding all partial and transitive dependencies.assume that the table does not contain repeat
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