Where The Payroll Data Is Stored

Once the payroll is run, where does the data get stored and how can we retrieve the same at a later date?
by: Srikanth
Below is the info:
Payroll Clusters:
Cluster tables combine the data from several tables with identical (or almost identical) keys into one physical record on the database.

• Data is written to a database in compressed form. 
• Retrieval of data is very fast if the primary key is known. 
• Cluster tables are defined in the data dictionary as transparent tables. 
• External programs can NOT interpret the data in a cluster table. 
• Special language elements EXPORT TO DATABASE, IMPORT TO DATABASE and DELETE  FROM DATABASE are used to process data in the cluster tables. 

PCL1 - Database for HR work area; (long text, etc)
PCL2 - Accounting Results (time, travel expense and payroll); (payroll results)
PCL3 - Applicant tracking data; 
PCL4 - Documents, Payroll year-end Tax data (change logs, etc) Data Management of PCLn 

• The ABAP commands IMPORT and EXPORT are used for management of read/write to database tables PCLn. 
• A unique key has to be used when reading data from or writing data to the PCLn.