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What is Cross Product? Simply Cross product is Binary Operator
In the first unit of this block, you have been given with the details of the Database Management System, its structure, advantages etc. This unit is an attempt to give you informat
While using extract datasets it is required to have a special workarea for interface False. It is not required to have a special workarea for interface
Discuss the problem of Spurious tuples and how we may prevent it. Ans: A spurious tuple is, mainly, a record in a database that gets created while two tables are joined bad
Draw an ER diagram for company''s database schema
An example of a weak entity is Staff because the availabilityID cannot be uniquely identified unless it is used in conjunction with the foreign key known as availabilityID in the A
What is the difference between internal tables and extract datasets? The lines of an internal table always have the similar structure. By using extract datasets, you can ha
Define what Immediate database modification technique uses? Ans: Both undo and redo.
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
Provide Examples of different types of Time and Date formats. It's most common store dates using a dash (-) as a colon (:)and the delimiter as the time delimiter. The given fo
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