written 5.6 years ago by | • modified 4.8 years ago |
i) Course, ii) Student, iii) Time & measure Aggregate marks Create a Cube and describe following OLAP operations.
i)Slice ii) Dice iii) Roll up iv) Drill down v) Pivot
written 5.6 years ago by | • modified 4.8 years ago |
i) Course, ii) Student, iii) Time & measure Aggregate marks Create a Cube and describe following OLAP operations.
i)Slice ii) Dice iii) Roll up iv) Drill down v) Pivot
written 5.6 years ago by | • modified 5.6 years ago |
Dimensions : course, student, time fact : Aggregate marks.
1. Slice : It is used to obtain a particular slice of the cube.
example : Aggregate marks of all students for all courses in the year 2016.
2. Dice : It is used to obtain a small portion of the cube covering all the dimensions.
example : Aggregate marks of all BE students, for courses of DB cluster for test five years.
3. Roll up : It is used to obtain generalized level of data from the current level example : Cluster wise aggregate marks for all students for every year.
4. Drill down : It is used to obtain detailed level of data from the current level.
example theory, T/w & viva marks for all students for every year.
5. Pivot : It is used to analyze the some data from different perspective
example : Analyzing aggregate marks course arise.