Upgrade of APEX 4.1 Fails With "ORA-00001: unique constraint (APEX_040200.WWV_FLOW_MESSAGES_IDX1) violated"
Last updated on OCTOBER 27, 2016
Applies to:Oracle Application Express (formerly HTML DB) - Version 4.1.1.00.23 and later
Information in this document applies to any platform.
An Application Express (APEX) 4.1.1 instance is being upgraded to 4.2.6 which fails. Checking the install log files, the following error can be seen.
ERROR at line 1:
ORA-00001: unique constraint (APEX_040200.WWV_FLOW_MESSAGES_IDX1) violated
ORA-06512: at "APEX_040200.WWV_FLOW_API", line 11928
Upgrade Application Express (APEX) 4.1.1 instance to 4.2.6.
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