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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.
can you please explain with the help of suitable example the difference between conflict equivalence and conflict serializability?
What is an ERD?
What are the advantages of relational data model? Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer
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Adding Redundant Associations for Efficient Access The expression redundant association means using "duplicate association for proficient access". While analysis, it is not a
what is view?explain
Improved Reliability: In a centralised DBMS, a server failure stops the operations of the DBMS. Though, a failure at single site of a DDBMS, or a failure of a communication link cr
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
What is the use of group by clause? Group by clause is used to apply aggregate functions to a set of tuples. The attributes given in the group by clause are used to
Rearrange Classes and Operations Sometimes, the similar operation is defined across different classes and can easily be inherited from a familiar ancestor, but more often oper
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