OLAP operations include slicing, dicing, drilling, and pivoting. Slicing selects along one dimension of a multidimensional cube. Dicing selects along two or three dimensions of the cube. Drilling involves switching between aggregated and detailed levels within a classification hierarchy, such as drilling up from months to quarters or drilling down from quarters to months. Pivoting rotates the data access to provide an alternative representation, such as transforming a 3D visualization into a 2D format.

1. OLAP
operations
• 1. Slicing
• 2. Dicing
• 3. Drilling
• 4. Pivot

2. Slicing
•Slicing is done by
selecting along one
dimension.

3. Bsc IT
BCA
BBA
Bsc FT
I II III IV V IV
Cybotech
ZHI
APTECH

4. I II III IV V VI
Bsc IT
BCA
BB
A
Bsc
FT
CYBOTEC
H
Slice (Institute)= ‘Cybotech’ C [Institute, course, semester]
= C[course, semester];

5. Dicing
•Dicing is done by
selecting along two
or three dimension.

6. Bsc IT
BCA
BBA
Bsc FT
I II III IV V IV
Cybotech
ZHI
APTECH

7. I II III IV V VI
Bsc IT
BCA
CYBOTEC
H
Dice (Institute)= ‘Cybotech’ or ‘ZHI’ and course=“Bsc IT” or
“BCA” C [Institute, course, semester]
= C[Institute’ , course’ , semester];
ZHI

8. Drilling :
(a) Drill up:
Drills with switching from a
detailed to an aggrigated level
within same classification
hierarchy.
week > month > quarter>

9. (b) Drill down:
•Switching from an
aggrigated to a more
deatailed level within
the same classification
hierarchy.

10. Pivot or Rotate:
• A visulisation operation which
rotates the data access in order
to provide an alternative
representation.
3 D > 2 D

11. BY: OM PRAKASH
**Thanks **
• .