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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.
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
can you please explain with the help of suitable example the difference between conflict equivalence and conflict serializability?
what is Mapping Constraints? with examples
A database administrator''s responsibilities and data contents
If R1 and R2 are two union compatible relations or functions, then the result of R3 = R1 ∩R2 is the relation that contains all tuples that are in both the relations In other words,
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
I need help with some assignments
What is E-R model? This data model is based on real world that having of basic objects called entities and of relationship between these objects. Entities are explained in a da
List the steps for converting state diagram to the code. a) Finding major control path b) Finding the conditional statements c) Finding the loops d) Finding error ro
The Transactions- A transaction is definite as the unit of work in a database system. Database systems that deal with a huge number of transactions are also termed as transaction p
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