November 2011
Intermediate to advanced
608 pages
13h 33m
English
The SAP update concept can be better understood by examining the SAP logical unit of work (LUW) and database LUW. SAP LUW is a SAP transaction encompassing a business process that could include several screens. Each screen’s data commit will constitute a database transaction or LUW. One SAP LUW may include several database LUWs.
When a screen commit is issued, the data is written to temporary update tables. The entries are not yet written to the application tables. Each SAP transaction has a dialog and an update component. The dialog component is executed by one or several dialog work processes. The update component is executed by the update work processes. At the end of the dialog part of the SAP transaction, the update part starts ...