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SQL Statement with Parse but no Execute or Fetch on Remote Database for Distributed SQL (Doc ID 580301.1)

Last updated on OCTOBER 24, 2019

Applies to:

Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Oracle Database - Enterprise Edition - Version 7.0.16.0 to 11.1.0.6 [Release 7.0 to 11.1]
Information in this document applies to any platform.
Information in this document applies to any platform.

Goal

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When distributed SQL statements are being traced using SQL_TRACE or event 10046 it is possible to trace the session created over the database link in the remote database and examine the performance of the remote SQL fragments in a TKPROF report. We will see in such reports some SQL fragments which do not correspond to a distributed SQL statement issued by the application being traced. Such statements will have a Parse phase but no Execute or Fetch phases. Here is an example:


What are such "Parse-only" SQL fragments issued to the remote database ?

Solution

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In this Document
Goal
Solution
References

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