Description of Invalid Zero Length Column (ZLC)
(Doc ID 1606284.1)
Last updated on OCTOBER 30, 2024
Applies to:
Oracle Database - Enterprise Edition - Version 8.0.6.3 to 23.6 [Release 8.0.6 to 23]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 Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
Purpose
The purpose of this article is to describe an invalid length of Zero in a column (ZLC).
Details
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In this Document
| Purpose |
| Details |
| ZLC Definition |
| ZLC and SELECT statements |
| ZLC and db_block_checking / db_block_check_for_debug |
| ZLC cannot be proactively detected |
| Workarounds to fix ZLC |
| References |