topic Re: what does CHANGEDOCUMENT_READ_HEADERS do? in Application Development and Automation Discussions

what does CHANGEDOCUMENT_READ_HEADERS do?

Former Member — Tue, 24 Jun 2008 06:50:47 GMT

hi,

i have a report which i have to performance tune.

the report is using above function module (CHANGEDOCUMENT_READ_HEADERS) and passes a single objectid which is fetched from EKKO-eblen.

so, this function module continuously accesses the cdpos and cdhdr tables for all of EKKO entries causing a performance problem.

is there any alternative by which i can process multiple EBLEN at one go?

is there any function module which does the same?

can i replace the functioning of this function module by a select query on respective tables?

Re: what does CHANGEDOCUMENT_READ_HEADERS do?

Former Member — Tue, 24 Jun 2008 06:55:13 GMT

refer to this link

http://help.sap.com/saphelp_nw04/helpdata/en/2a/fa01dd493111d182b70000e829fbfe/frameset.htm

Reward points if usefull

Cheers

Snehi

Re: what does CHANGEDOCUMENT_READ_HEADERS do?

Former Member — Tue, 24 Jun 2008 07:04:33 GMT

Hi,

The FM CHANGEDOCUMENT_READ_HEADERS reads the change document numbers, with the associated header information, for a particular change document object. Passing only the object ID would naturally result in huge execution times. You need to pass the object class also along with this.

Or else you can make use of CDHDR and CDPOS tables directly using a select query to get the same information.

The object class OBJECTCLAS has to be passed as 'EINKBELEG' for Purchase orders. And the object id OBJECTID has to be the purchase order number.The TABNAME field has to contain the table name (EKKO in the case of purchase orders). The retrieval would be faster in this way.

Thanks.