Hierarchy format in Flat file

Question

Hi gurus,
      please tellme  the Hierarchy format in Flat file.
           ThanQ.
   Regards,
   Ramesh.

Answer 1

Hi
1.Defining the source system from which you want to load data:
Create For a flat file, choose: File System, Manual Metadata; Data via File Interface.
2.Defining the InfoSource for which you want to load data:
Create Application Component.
Create InfoSource , Direct Update
Choose an InfoObject from the proposal list, and specify a name and a description.
3.Assigning the source system to the InfoSource
Assign Source System. You are taken automatically to the transfer structure maintenance.
The system automatically generates DataSources for the three different data types to which you can load data.
Attributes, Texts,Hierarchies (if the InfoObject has access to hierarchies)
The system automatically generates the transfer structure, the transfer rules, and the communication structure (for attributes and texts).
  4.      Maintaining the transfer structure / transfer rules
Choose the DataSource to be able to upload hierarchies.
Idoc transfer method: The system automatically generates a proposal for the DataSource and the transfer structure. This consists of an entry for the InfoObject, for which hierarchies are loaded. With this transfer method, during loading, the structure is converted to the structure of the PSA, which affects performance.
PSA transfer method: The transfer methods and the communication structure are also generated here. 
5.      Maintaining the hierarchy:
Choose Hierarchy Maintenance, and specify a technical name and a description of the hierarchy.
PSA Transfer Method: You have the option here to set the Remove Leaf Value and Node InfoObjects indicator. As a result, characteristic values are not transferred into the hierarchy fields NODENAME, LEAFFROM and LEAFTO as is normally the case, but in their own transfer structure fields.  This option allows you to load characteristic values having a length greater than 32 characters.
Characteristic values with a length > 32 can be loaded into the PSA, but they cannot be updated in characteristics that have a length >32.
The node names for pure text nodes remain restricted to 32 characters in the hierarchy (0HIER_NODE characteristic).
The system automatically generates a table with the following hierarchy format (for sorted hierarchies without removed leaf values and node InfoObjects):
The system transfers the settings for the intervals and for time-dependency from the InfoObject maintenance. Depending on which settings you have defined in the InfoObject maintenance, further table fields can be generated from the system.
The valid from and valid to field is filled if you select Total Hierarchy Time-dependent in the InfoObject maintenance. The time-dependent indicator is activated if you select the Hierarchy Nodes Time-dependent option in the InfoObject maintenance.
6.      Save your entries.
Depending on which settings you defined in the InfoObject maintenance, additional fields can be generated from the system. Also note the detailed description for Structure of a Flat Hierarchy File for Loading via an IDoc and for Structure of a Flat Hierarchy File for Loading via a PSA.
Further Steps:
Maintaining InfoPackages
Result
You have uploaded the hierarchy data for the corresponding characteristic.