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SAP ABAP HR
There is nothing much difference between Abap and HR Abap. The way we retrieve the data from data base is different. In general ABAP data is stored in Tables, but coming to HR ABAP employee data is sorted through Infotypes. The way we retrieve the data from infotypes is different in HR Abap.
In general ABAP we use Logical data base very rare, as in HR ABAP most of the programs use Logical data base to select data from Infotypes by using Get event. In ABAP we use read statement to read particular record, still in HR ABAP we do use read statement apart from that we have Macros and provide statement.
Macro is pre defined code (like function module) which reads data from internal table (internal infotype) based on dates. Provide statement is like Select statement but selects data from internal table Storage and access of data in HR Abap is completely different in HR Abap comparing with ABAP. We use transaction code PA20 and PA30 to maintain data in infotypes.
The ABAP HR is an integral part of ABAP. Generally in ABAP the following are done:
Table development
Date Processing
Report developing
BAPIs /RFCs
Data base update
Screens development/enhancement
Scripts and smart forms
Function Building
Java connectors
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