Zero Downtime Option for SAP Business Suite

Exporting Table Statistics to the Productive System

The table usage statistics is representative for the time when the update is performed. In particular, it's important to consider the time when business users are working on the bridge subsystem.

Context

An ideal dataset covers a period of time with all activities and business processes, such as the time in the week when SUM performs the update. To export table size information, make sure that the database statistics are up-to-date. Outdated database statistics can result in inaccurate size values.

Procedure

  1. Call transaction SUMTOOLBOX.
  2. Execute the tool Export data for Impact Analysis to export the statistics to the file ZDIMPANA.ZIP.
  3. Check for periods that are not flagged as Contains Imports to avoid false positives in impact analysis.

    For example, if you perform daily imports into the productive system, you cannot select a period. In this case, you must continue with the selection of periods that are flagged as Contains Imports.

    If you export a large period of time, such as a month or more, it is possible that you also export statistics about table accesses that are not necessarily relevant to the business processes needed during the runtime of the bridge subsystem.

  4. Provide the exported file ZDIMPANA.ZIP to the save subdirectory of the SUM directory.
    Note that the save subdirectory is only created by the Software Update Manager during the Preprocessing roadmap step.