topic query problem in Application Development and Automation Discussions

query problem

Former Member — Fri, 07 Aug 2009 15:57:14 GMT

Hi,

I need to fetch multiple records from an interntal table using another internal table. ARC_PPDIX is an internal table that has multiple records for each selection of select_kostl-docnum and select_kostl-doclin. I am aware of 'FOR ALL ENTRIES' syntax but it works only in case of DB tables. Now I am able to retrieve just one record for each query. How can I change this code to get the desired result?

Here is the code.

LOOP AT select_kostl.

read TABLE ARC_PPDIX with key docnum = select_kostl-docnum

doclin = select_kostl-doclin binary search.

if sy-subrc = 0.

MOVE-CORRESPONDING ARC_PPDIX TO run_doc_xref.

Append run_doc_xref.

clear run_doc_xref.

ENDIF.

ENDLOOP.

Thanks,

Re: query problem

Former Member — Fri, 07 Aug 2009 16:03:50 GMT

Hi,

You will have to use a loop inside another loop as you say there is many to many relation.


LOOP AT select_kostl.
loop at ARC_PPDIX where docnum = select_kostl-docnum and
doclin = select_kostl-doclin 
MOVE-CORRESPONDING ARC_PPDIX TO run_doc_xref.
Append run_doc_xref.
clear run_doc_xref.
endloop.
ENDLOOP.

Hope this helps.

Regards,

Sachin

Re: query problem

Former Member — Fri, 07 Aug 2009 16:04:00 GMT

Hi,

If u have to fetch multiple records based on another internal table, you cannot use READ statement since its fetches only one record per main loop. what you can do is write a nested loop and acheive it.


LOOP AT select_kostl.
LOOP AT ARC_PPDIX where docnum = select_kostl-docnum and doclin = select_kostl-doclin binary search.
MOVE-CORRESPONDING ARC_PPDIX TO run_doc_xref.
Append run_doc_xref.
clear run_doc_xref.
ENDLOOP.
ENDLOOP.

Regards,

Vik

Re: query problem

former_member194669 — Fri, 07 Aug 2009 16:04:01 GMT

Try with loop inside loop


LOOP AT select_kostl.
LOOP AT ARC_PPDIX where  docnum = select_kostl-docnum
                                    and  doclin = select_kostl-doclin.
MOVE-CORRESPONDING ARC_PPDIX TO run_doc_xref.
Append run_doc_xref.
ENDLOOP.
ENDLOOP.

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Re: query problem

Former Member — Fri, 07 Aug 2009 16:25:10 GMT

thanks. I was aware of using NESTED loops. I wanted to know is there a different way keeping the performance in view. it seems nested loop is the uanimous choice.