In some business process data loading will be conducted on hourly bases through Timestamp Field, are often required as delta criteria for generic delta extraction. However, in many tables such the timestamp field is not available; instead the creation/change date and time are available. Generic delta needs to function on one field. This article explains how exactly request are processed BW system to at OLPT server and what are the dependent fields are interlinked to fill the TIMESTAMP field on runtime extractor.
Read further at ...http://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/26717
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