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SQL Statements Performed Across Database Links run Slowly. Explain Plan Shows Function SYS_OP_C2C has been Applied to Predicates, and Query uses a Full Table Scan. (Doc ID 2010872.1)

Last updated on OCTOBER 29, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.4 to 12.1.0.2 [Release 10.2 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

NOTE: In the images and/or the document content below, the user information and data used represents fictitious data from the Oracle sample schema(s) or Public Documentation delivered with an Oracle database product.  Any similarity to actual persons, living or dead, is purely coincidental and not intended in any manner.

 

Cause

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In this Document
Symptoms
Cause
Solution
References


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