Differences between ABAP Vs ABAP HR

ABAP	ABAP-HR
Generally in ABAP the following are done Table Development, Report Developing, Data Processing, BAPI’s / RFC’s, DB Update, Screens Development, Scripts and Smart Forms, Function Building.	Generally ABAP-HR is different with other modules. Use of Infotypes, LDB’s, Macros & Provide Statements, Authorization Checks.
ABAP data is stored in tables.	ABAP-HR data is stored in Infotypes. The way we retrieve the data from Infotype in HR is different.
We use LDB’s very rarely.	Most of the programs we use LDB’s to select data from Infotypes by using GET Event.
We use read statement to read particular record.	We use read apart from that we use Macro’s and Provide Statements.
Selection Screen is not default.	Selection Screen is default.
We always work with Transparent Tables.	Maximum cases (90%) work with cluster tables, (10%) of Transparent Tables.
Fetching data from DB with Select Query only.	Here we use Select, FM, Import/Export Statements and Macros (90%).
Scripts, Smart Forms, Adobe Forms are available but no HR-Forms.	Scripts, Smart Forms, Adobe Forms and HR-Forms also available.
ABAP to ABAP-HR is possible.	ABAP-HR to ABAP is not possible.
Loop at….End loop by using single loop keyword we can’t process (we can not join) more than 1 IT at the same time.	Provide….End Provide Here it is possible.