My Oracle Support Banner

SQL Statement Failing With ORA-14766: Unable To Obtain A Stable Metadata Snapshot (Doc ID 2127653.1)

Last updated on FEBRUARY 21, 2024

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


A select statement on a partitioned table with a LOB fails with "ORA-14766: Unable to obtain a stable metadata snapshot" while concurrent DDL is running on the table.

An errorstack from the ORA-14766 might be similar to the following:



To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.