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How to Diagnose and Resolve ORA-1693: max # extents (%s) reached in lob segment %s.%s (Doc ID 1014040.102)

Last updated on DECEMBER 11, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 8.0.3.0 to 10.1.0.2 [Release 8.0.3 to 10.1]
Oracle Database Cloud Schema 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
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.

Purpose

Problem Description
-------------------

The purpose of this note is to help resolve situations where you encounter the ORA-1693
error.

You are inserting data into a LOB column and receive the following error:

  ORA-01693: max # extents (%n) reached in lob segment %s.%s
e.g.
  ORA-01693: max # extents (4096) reached in lob segment MAILARCH.
             SYS_LOB0000003181C00006$

Your alert.log may show a slightly different error:

  ORA-01693: max # extents %n reached in lobsegment %s.%s
e.g.
  ORA-01693: max # extents 4096 reached in lobsegment MAILARCH.
             SYS_LOB0000003181C00006$

 

Troubleshooting Steps

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