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ABAP Query Question

Posted on Dec 23, 2004 at 07:41 PM 17 Views

Hello. Is there a way to dynamically generate a query?

For example: I'm doing an RFC call that sometimes the strings contains data, the other times they don't. Is there a way of building the query to only 'and' the values when there are values there?

Like

a = '1'

b = ''

c = '2'

select * from whereever where a = 1 (dont include b because its empty) and c = 2

Any ideas?

thanks, Graeme.

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  • author's profile photo Deborah Castle
    Deborah Castle
    Posted on Dec 23, 2004 at 08:50 PM
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    Yes, you can. It can be restrictive. I've done it, though I don't have any examples to hand. Dug up the help for it

    http://help.sap.com/saphelp_47x200/helpdata/en/67/93b80914a911d2953c0000e8353423/frameset.htm

    Just look at dynamic conditions

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    • Former Member Former Member
      Dec 23, 2004 at 10:06 PM

      Heres a good solution I found:

      Dynamic where clauses in open SQL

      You can use an internal table to build a dynamic where clause:

      data: where_tab(30) occurs 1 with header line,

      where_clause(30) type c.

      • Build the where clause. Will look like this when finished

      • WHERE ZAFSTMD02 = 'X' AND rbusa = '5145'

      • With a constant, result: ZAFSTMD01 = 'X'

      concatenate 'ZAFSTMD' zcostcheck-zmaaned ' = ''X''' into where_clause.

      • Append to internal table where_tab

      append where_clause to where_tab.

      • With a variable, result: AND rbusa = '5145'

      concatenate 'AND rbusa = ' '''' i_tab-zgsber ''''

      append where_clause to where_tab.

      • Select

      select * from zcostfreq

      where (where_tab).

      endselect.

      Note that you can combine static and dynamic where clauses:

      select * from zcostfreq

      where bukrs = '2021' AND

      (where_tab).

      endselect.

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