Diff b/w infosource and data source

Question

hai all
                     can any one tell me abt the difference b/w infosource and datasource in b.w?.and also abt the infopackage and how the later relates with the former?.
thanxs
sri

Answer 1

Hi Srinivas,
Data source: It provides the data of source system,created in source systenm side and then replicated in BW side.Itis one which provides the data available in the tables to the BW System.A group of fields which are coming from one or more tables is called as datasource.Data will not be resided in the datasource.It will be present in the Tables.Using Datasource we extract the data into BW.
_TYPES OF DATASOURCE: _
datasource for transction data
datasource for char attributes
datasource for texts
datasource for hierarcy (att,texts, hier are master data datasources)
InfoSource: It is the source of meaningfull data for data target...created in BW side..it is basically logical pool of data ( no physical storage) from one or different data source... It is on the BW which contains all the InfoObjects. It contains transfer structure and communication structure. Transfer structure is actually the structure similar to the R/3 Datasource structure and comm. structure contains all the InfoObjects.
in 3.5 it has two types of infosource... flexible update(transction data) and direct update (master data)
core parts: communiation structure and transfer structure...
and infosourc in 7 you logicallcy group striaght infoobjects......
*PLS Search SDN for all ur Basic BW Queries*
*pls assign points,if info is useful*
Regards
CSM reddy