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Which database object does not physically exist?
A view database object does not physically exist.
What is storage manager? A storage manager is a program module that gives the interface between the Low level data kept in a database and the application programs
Explain four causes for failures in data warehouse projects
1) Define a job scheduling strategy that will meet business requirement of reporting availability by 6am CST for the following cubes? Show the job scheduling dependencies in a pict
To eliminate duplicate rows (distinct operator) Example: SELECT DISTINCT DEPTNO FROM EMP;
Type of views : Simple views and Difficult Views Feature Simple Views Complex Views Number of tables One
let us consider a table having 2200 records and the fixed size of the table to be considered as 25.then how many numbers of table is requredto perform horizontal fragmentation
Give an example of enforcement in Typing. You can understand the idea of enforcement as it makes sure objects of dissimilar classes may not be interchanged as below: Exampl
job scheduling for different cubes
Briefly explain the state diagram by taking one example. State Diagram - An object can be given a sequence of input instructions. The state of the object can vary depending u
why we fregment at all?
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