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Difference in "QUERY" and "READ" and other problems

I am new to NWGW and having problems with a custom RFC.

The RFC expects two IMPORTING parameters


It returns a table of Sales Orders where the document date is between those two dates.

First of all, I don't understand the difference between a "Query" and a "Read" action.

The second problem is that even though in the data model, I mark E_FROMDATE and E_TODATE as keys, their values are not being passed to the RFC. I can see they are initial values when I set an external breakpoint at the beginning of the RFC.

I've tried both $filter and (e_fromdate='20120101, e_todate='20120131'). Neither one works on either the QUERY or the READ service. They are both initial values upon entry to the RFC.

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  • Best Answer
    Posted on Nov 13, 2012 at 07:59 AM

    Hi Wardell

    In case you are new to odata i would suggest a quick tour in .

    Have a look also at the following how to guide that will walk you through service creation using the service builder.



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