Upload
yasmin-ashraf
View
473
Download
2
Embed Size (px)
Citation preview
INFO CUBE- Yasmin Banu A
INTRODUCTION
WHAT IS AN INFO CUBE? Info Cube is data storage area in which we
maintain data Info Cube is a set of relational tables that are
created according to the star schema An Info Cube can function as both a data
target and Info Provider Reports and analyses are based on Info Cubes A reporting user can define or execute queries
against an Info Cube Only Info Cubes physically contain data in the
database It is used to store summarized /
aggregated data for long periods of time
EXTENDED STAR SCHEMA: The benefits of star schema are slicing down,
easy understanding of data and performance increase
In extended star schema, “fact table” and “master data table” is connected through SID (Surrogate ID) table
In extended star schema , fact table and dimension table will be inside the cube
EXTENDED STAR SCHEMA (CONTD.):
Fact Table
Dimension Table
Dimension Table
Dimension Table
Dimension Table
SID Table
SID Table
SIDTable
SIDTable
Attribute Text Hierarchies
Attribute Text Hierarchies
Attribute
Text
Hierarchies
Attribute
Text
Hierarchies
INFO CUBES: Info Cube consists of one fact table to store key figure
values and can contain a maximum of 233 key figures It usually has a minimum of 4 dimensions and a
maximum of 16 dimensions Of these, 13 are customer created and 3 are SAP
supplied dimensions: Unit dimension table: - Created only if there is at
least one key figure of type amount or quantity
Data Package dimension table Time dimension table
Dimension tables do not contain the characteristics/characteristics values, but the corresponding SID keys/values
Each customer created dimension can have 248 characteristics Info Objects
TYPES OF INFO CUBES: Infocube is classified in to three types based on the
way of maintaining and distributing the data1) Standard Info Cube:
Used to maintain the data physically in the cube
Read only is possible2) Virtual Info Cube:
It does not maintain data physically in the cube
During the query execution it brings the data
from respective source system3) Real Time Info Cube:
Stores the data physically in the cube Read and Write are possible It is significantly used in planning the data
STEPS TO CREATE STANDARD INFO CUBE
STEPS TO CREATE STANDARD INFO CUBE : Step 1 : Firstly, we will create the Data
Source. Right click on the Application component and create Data Source
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Step 2 : Give the technical name, description
and data source data type. Then, click Continue
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Step 3 : In ‘General Info.’ tab, give short,
medium and long description for the Info Cube
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): In ‘extraction’ tab, give the path name,
header rows to be ignored, select the data format & data separator
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): In ‘Proposal’ tab, click on ‘Load example
data’
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Activate the data source, and choose
‘Preview’ tab. Click on “Read Preview Data”
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Step 4 : Create an Info Package to load the
data into PSA from flat file
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Step 5 : Give a description for the Info
package. Click Save button
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Step 6 : Click on ‘Start’ button in the
Schedule tab
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Monitor the data load
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Step 7 : Go to Info Providers, choose an Info
Area, right click and choose ‘Create Info Cube’
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Give Technical name and description for Info
Cube. Click create button
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Step 8 : Choose ‘Info Object Catalog’ and
select the respective Info object & put them under dimensions (which is in the right hand side of d screen). Check & Activate
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Step 9 : Create Transformation by right
clicking on the Info Cube
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Give the details like data source name as the
object type & data source name
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Link the data source fields to the info objects
in the data target. Check & Activate
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Step 10 : Create the Transformations by right
clicking on the DTP
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Click Continue
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Choose the Extraction mode as ‘Full’ in the
Extraction tab. Check & Activate
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): In the ‘Execute’ tab, click on Execute button
and monitor the records loaded to the info cube from PSA
STEPS TO CREATE STANDARD INFO CUBE (CONTD.): Step 11 : Once the data load is successful,
the info cube contents can be checked for data
THANK YOU