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Define decision tree classifiers?
As the name suggests decision tree classifiers use a tree: Every leaf node has an associated class, and every internal node has a predicate associated with it.
Illustrate different types of Locks in SQL Server. There are three kinds of locks in SQL Server i.) Shared locks - These are used for operations which don't allow any update
Give an example of Operations from the functions of a bank. For creation of a saving account, you can write: bank::: create -savings-account (customer)->account. For oper
Question: This question refers to the database schema. a) Express the following queries in SQL: (i) Write the SQL code that will create the table Company. Your answer sh
Describe domain constraints. Domain constraints contain entity integrity and referential integrity. The domain is a set of values that might be assigned to an attribute. The en
Explain the systems development life cycle. This is the traditional method to develop, maintain, and replace information systems that contains the project identification and se
Explain weak and strong entity sets? Weak and Strong entity sets: A physically powerful entity set has a primary key. All tuples in the group are distinguishable through that k
How much would you charge to create a database encompassing an Online Bakery with all the elements below? I. Describe the application that you would like to design. This should
Where does view definition stored? A view definition is permanently stored as part of the database.
Evaluate: a.When transactions T1 and T2 are in a deadlock, one of the transactions will eventually implement to completion and let the other one continue implementation. b.
Define outer union operation of the relational algebra. Compute the outer union for the relations R and S given below. Outer Join - If there are any values in one tabl
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