SAP ABAP

What is the use of the RAISING exception?

SAP ABAP

Written by Accourlspoums Tuesday, 01 March 2011 09:29

The raising exception determines whether the calling program will handle the exception itself or leave the exception to the system.

 

What is the difference between internal tables and extract datasets?

SAP ABAP

Written by Accourlspoums Tuesday, 01 March 2011 09:29

The lines of an internal table always have the same structure. By using extract datasets, you can handle groups of data with different structure and get statistical figures from the grouped data.

You have to define the structure of the internal table at the beginning. You need not define the structure of the extract dataset.

In contrast to internal tables, the system partly compresses exact datasets when storing them. This reduces the storage space required.

Internal tables require special work area for interface whereas extract datasets do not need a special work area for interface.

 

 

What is the difference between field-group header and other field groups?

SAP ABAP

Written by Accourlspoums Tuesday, 01 March 2011 09:29

The header field group is a special field group for the sort criteria.  The system automatically prefixes any other field groups with the header field group.

Can a filed occur in several field groups.

SAP ABAP

Written by Accourlspoums Tuesday, 01 March 2011 09:29

Yes.  But it leads to unnecessary data redundancy.

 

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