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Transactions Fail When Connecting Through a DBLink With ORA-2046 & ORA-2063 Errors And Remote ORA-600 [4400] (Doc ID 234579.1)

Last updated on JANUARY 30, 2022

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 Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.


Transactions fail when connecting via a dblink with ORA-2046 & ORA-2063 errors.  The remote instance will show ORA-600 [4400], [48] errors are occurring, e.g.:

Local instance

ORA-02046: distributed transaction already begun
ORA-02063: preceding %s%s from %s%s

Remote instance

ORA-00600: internal error code, arguments: [4400], [48], [], [], [], [], []

The call stack trace of the ORA-600 will resemble:

... ktcddt kssdch ktcbod kssdch ksuxds ksudel opilof opiodr ttcpip opitsk opiino opiodr opidrv sou2o main start



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