SAP Knowledge Base Article - Preview

3265639 - How to reduce History Table size

Symptom

You want to reduce History Table size, and you see output of count number is big different for the two SQL statement when you check it:


SELECT COUNT(*) FROM <history_table_name> WHERE <condition>

SELECT COUNT(*) FROM <history_table_name> WHERE <condition> WITH PARAMETERS ('REQUEST_FLAGS'= ('ALLCOMMITTED','HISTORYONLY'));


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Environment

  • SAP HANA Database, platform edition 1.0
  • SAP HANA Database, platform edition 2.0

Product

SAP HANA 1.0, platform edition ; SAP HANA, platform edition 2.0

Keywords

'REQUEST_FLAGS'=('HISTORYONLY'), 'REQUEST_FLAGS'=('HISTORYNEEDVALIDTO'), SESSION_TYPE, System-Versioned, Application-Time Period, RAW_RECORD_COUNT_IN_HISTORY_MAIN, history-main , KBA , HAN-DB , SAP HANA Database , HAN-DB-ENG-BW , SAP HANA BW Engine , HAN-DB-PERF , SAP HANA Database Performance , HAN-DB-PER , SAP HANA Database Persistence , How To

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