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Which database object does not physically exist?
A view database object does not physically exist.
What is NULL? Simply NULL means not in value.
Explain the term- Query. Queries are used to repossess and show specific records in a table. They can also be used to show specific fields of specific records, which meet the co
Which is the properties of entities? Attributes is the properties of entities.
What is view in SQL? How is it defined? Any relation that is not part of the logical model, but is made visible to a user as a virtual relation is known as a view. We descri
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
What is first normal form? The domain of attribute must contain only atomic (simple, indivisible) values.
Create a Student database and Retrieve the names of all students majoring in ‘CS' Consider the following relational database: STUDENT (name, student#, class, major) COURSE (co
Define access time. Access time is the time from when a read or write request is issued to when data transfer starts.
One-to-one relationship: For every 1:1 relationship type R in the ER diagram including two entities E1 and E2 we take one of entities (say E1) preferably with total participatio
how to implement hyrise in C plus plus
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