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What is an entity relationship model? The entity relationship model is a collection of basic objects known as entities and relationship between those objects. An
Give the limitations of SQL authorization. The code for checking authorization becomes intermixed with the rest of the application code. Implementing authorization by applic
what characterizes the levels in RAID technology
Describe the Association: Design Before we describe association design let us define association "Association is set of links between two objects in the object model". It is
List the set operations of SQL? 1) Union 2) Intersect operation 3) The except operation
Consider the relations EMPLOYEE(emp#, name) ASSIGNED_TO(project#, emp#) PROJECT(project#, project_name, chief) Express the subsequent queries in Relational Algebra (i) Ge
What is system catalog or catalog relation? How is better known as? A RDBMS maintains a explanation of all the data that it contains, information about every relation and index
User error : This contains errors in the program (e.g., Logical errors) with errors made by online users of database. These types of errors can be avoided by applying some check
What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
Question: Data Mining is the process of extracting knowledge hidden from large volumes of raw data. (a) Using a suitable example, illustrate how Data Mining can be useful t
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