atg droplet - SQL Statement Failed in ATG -

i working in atg application. today, got below sql exception in /atg/userprofiling/profileadapterrepository , because of violation of unique constraint.

atg.repository.repositoryexception; source:java.sql.sqlintegrityconstraintviolationexception: ora-00001: unique constraint (dcs_usr_actvprom_p) violated 

exception occurs when insert query user promotion table dcs_usr_actvpromo of atg executed. searched when , query executed, values passed not find till now.

handlelogin method of atg.scenario.userprofiling.scenarioprofileformhandler have been called custom formhandler. not find flow after method call. after method call, exception occurs.

could let me know happens inside method , sql queries executed in atg above table please?

you did not add actual sql trying run, error message pretty says all. breaching unique constraint.

let's suppose have table called foo , have unique column, called bar. if intend insert record foo, having bar value of 'loremipsum', statement not successful if foo table has record bar has value of 'loremipsum'.

as result, insert of:

insert foo(bar) values('loremipsum'); 

has risk of failing. prevent risk of happening, have check whether value exists, this:

insert foo(bar) select 'loremipsum' foo 'loremipsum' not in (select distinct bar foo)