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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.
What is recovery management component? Ensuring durability is the responsibility of a software component of the base system known as the recovery management component.
explain the steps for reduction of er model into relational model?
What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
Explain the two types of participation constraint. 1. Total: The participation of an entity set E in a relationship set R is said to be total if each entity in E participates i
For the relations answer the following queries in SQL Street (name, location, city) House (number, street_name) Lives (name, house_number) (i) Obtain the names of persons who liv
Benefits of using heuristics
Describe the responsibilities of the DBA and the database designer ? The responsibilities of DBA and database designer are: 1. Planning for the database's future storage needs
write on the various type of relationalkey
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
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