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What is a B+-Tree index?
A B+-Tree index takes the form of a balanced tree in which each path from the root of the root of the root of the tree to a leaf of the tree is of the similar length.
the of super market system done in database
Explain the conventions (relationships) for displaying an ER schema as an ER diagram.
The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
Use a Set operator to create a list of academics who have written or co-written less than 5 papers and also have greater than 3 interests. List their academic number in the output.
What are the comparison operator in SQL? Comparison operator in SQL are =, LIKE and BETWEEN
Describe the Composite Key Composite Key: Sometimes one key is not enough to uniquely recognize a row. E.g. in a single class Roll is enough to search a student, but in the w
Consider a typical sales invoice that would include the following information. Design a single table to hold all of the information required to store an invoice including this info
Creating views with check option : This option limits those updates of data values that cause records to go off the view. The following instance tells this in more detail: Examp
Hierarchical model is also known by? A hierarchical model is also known as a Tree structure.
Farmer Bob, Farmer Jane and Farmer Jose run a cow farming co-op. For every cow they keep the cow’s name, age (or date of birth), breed and numbered plastic ear tag. The each of t
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