SAP Plant Maintenance
ECC6 EhP7
Understanding Data Flow
in the BW system
3.x2 and 7.0 BW Data Flow
.a Multi-Provider Data Flow
and a Data Store example
Data flow 3.x2
use RSA1
to understand
the BW Info Cube Data Flow
Info cube
0PM_C01
Double-click
Info Cube Technical name
0PM_C01
“3 Green Triangles”
are Dimensions
In the Dimensions are the Characteristics
Key figures
Right click the
Info Cube
and select
“Display Data Flow”
Objects below the Info Cube
DATA SOURCE
SOURCE SYSTEM
INFO SOURCE
TRANSFER RULES
UPDATE RULES
INFO
PROVIDER
Double-click
the
DATA SOURCE
Source System in the ERP
Data Selection to be uploaded from Source System to the Info Provider
Data Load methods from ERP to the BW system
There are 3 components in the Source System
There are 3 components in the Source System
There are 3 components in the Source System
There are 3 components in the Source System
0_PM_OM_OPA_1
Goto the Contents to check the Extractor for 0_PM_OM_OPA_1
SE11
Database table
ROOSOURCE
check the Extractor for 0_PM_OM_OPA_1
PMEX_PM_GET_ORDCST
is
the EXTTRACTOR
PMEX_PM_GET_ORDCST
Function Module
in SE80
the Extractor PMEX_PM_GET_ORDCST
is
an ABAP program for Extracting data from Extraction Structure to the Transfer Structure
There are 3 components in the Source System
The Extractor gets data from the Extraction Structure to the Transfer Structure
The Transfer Rule
Stage the Data
from the Transfer Structure to the
Communication Structure
in the INFO SOURCE
There are 2 components in the Info Source
There are 2 components in the Info Source
Communication Structure
Transfer Rules
Transfer Structure
Extractor
Extraction Structure
Data Source
There are 2 components in the Info Source
There are 2 components in the Info Source
UPDATE RULEs
An update rule specifies how data will be updated into a target which can be either the Info Cube or ODS Object
Data flow 7.0
0PM_C01
based on 3.x2 where
InfoSource is
MANDATORY
0PM_C13
based on 7.0 where
InfoSource is
OPTIONAL
0PM_C13
right-click
select “Display Data Flow”
Source System
Data Source
Update Rule
Notice there isn’t any INFO SOURCE
(or Communication Structure)
3.x2
InfoSource
is
Mandatory
7.0
InfoSource
is
Optional
0PM_MP04
is a Multi-Provider
the 0PM_MP04
is Multi-Provider
…
double-click
and the pop-up
indicate data is from 2 InfoCubes
Data for 2 Info Cubes
Multiple
Source System
Multiple
Info Source
the 0PM_MP04
Multi-Provider
also has
Characteristics, Key Figures, and Time Characteristics
the 0PM_DS02
is a Data STORE
the 0PM_C08
is a 3.x2 data flow info cube
it has a Data Model
with Dimensions (within it Characteristics)
the 0PM_MP04
is Data Store
it does not have a Data Model as the Data is FLAT (without DImensions)
0PM_DS01
is a Data STORE
0PM_DS02
is a Data STORE
INFO SOURCE
SOURCE SYSTEM
UPDATE RULE
from 0PM_DS01
to 0PM_DS02
UPDATE RULE
from InfoSource
to 0PM_DS01
TRANSFER RULE
A BW DataStore Object is the object which represents a flat physical table. In a dataflow, it is typically used as an Enterprise Data Warehouse layer, to store (historical) transactional data before it is transferred to the reporting layer.