技術文章 - CS93254

Default Oracle Index Caching value of 100 is too high for Integrity Lifecycle Manager

修改時間: 10-Mar-2022   


套用到

  • PTC RV&S (formerly Integrity Lifecycle Manager) 2009 to 13.0

描述

  • Slow Query execution on Oracle
  • Despite having a good execution plan, queries against an Oracle database are running slowly
  • The optimizer_index_caching parameter passed to Oracle is too high for the size of the database
  • How to change the optimizer_index_caching
  • Queries against the IIMAP table (relationship queries or aggregate computations) are performing slowly
  • Historical Queries (queries involving IssueDeltaAtoms) are performing slowly
  • What value should mksis.oracle.optimizer_index_caching property be set to
  • Opening a document takes very long time
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