Updating a Row with More Than 255 Columns Causes Row Chaining
(Doc ID 238519.1)
Last updated on DECEMBER 11, 2023
Applies to:
Oracle Database - Enterprise Edition - Version 8.1.5.0 and laterOracle 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
- symptom: Updating row with > 255 columns and trailing NULLs
- symptom: Inter-block migration
- symptom: Rows are chained
Changes
Cause
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