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

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 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:

----- Error Stack Dump -----
ORA-14766: Unable to obtain a stable metadata snapshot
----- Current SQL Statement for this session (sql_id=56wavjnmrtrw5) -----

Call stack shows lob function and kokl functions
qesmaKokaInitLocalP <- kokliihdl <- koklglfn <- koklOutlineRead1 <- koklread1 <- kpolob <- opiodr <- ttcpip



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