This document is in continuation to section 2.1 of Performance Improvement of Data Selection and Data Transfer Activities in SAP TDMS 4.0
Objective:
Basic object of this document is to explain steps to enable parallelization of data selection of any migration object in TDMS 4.0 on top of DMIS SP09 and above.
Introduction:
By default, the Data Selection activity runs a single work process to select data of a migration object in sender system.
By enabling the parallelization of data selection, you can schedule multiple work processes for access plan calculation, that is, to select the data of a migration object according to:
Steps to Enable Parallelization:
In case "Generation of Runtime Objects" activity is already executed in your package. You need to perform following additional steps too after performing among mentioned steps:
NOTE: There is no need to set P_SEL for any fill header program.
Example:
The number of records in the TDMS header table CNVTDMS_05_BKPF is 10 million. (You can find this information in the logs of the corresponding TDMS header activity.)
You want to schedule 5 batch jobs for the data selection of the migration object X_BKPF. In this case, delimiter value should be 2 million and header table name should be CNVTDMS_05_BKPF.
Points to be Noted:
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