Ora-07445: Core Dump [qkabxo()+4] When Using Rownum In Query

(Doc ID 1262654.1)

Last updated on NOVEMBER 28, 2016

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.1]
Information in this document applies to any platform.
***Checked for relevance on 26-Nov-2012***


On : version, Internals Errors (ORA-600 & ORA-7445)

When attempting to run a SQL statement that includes rownum, the following error can occur if
the optimizer mode is switched from FIRST_ROWS to ALL_ROWS:

ORA-07445: exception encountered: core dump [qkabxo()+4] [SIGSEGV] [Address not mapped to object] [0x000000000] [] []

- Error: ORA-7445 [QKABXO+8]
- Current statement contains rownum.
- Stack trace: qkabxo <- qkanindex <- qkatab <- qkajoi <- qkaqkn
- Running release or


Sign In with your My Oracle Support account

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

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms