Available handlers

Handler	Description
DISCARD	Ignore the offending SQL and continue with the next one
FORCE	Ignore the conflict, leave the SQL applied and continue with the next one (this differs from DISCARD only if the SQL actually changes something, i.e. the conflict is "too many rows updated/deleted")
OVERWRITE	Do not check old values, try again with just primary key in the where clause (this will fail if there is no row at all on APPLY with the PK value). This will have no effect if the Primary Key was the only column represented in the where clause. Be careful if the table has no primary key.
NEWER,OLDER	Look into target table (by primary key) and get values of specified columns (usually dates or number sequence). If the source row is newer/older, the operation becomes OVERWRITE, otherwise DISCARD.
PLSQL	Call user-specified PL/SQL function. More information is available in PL/SQL conflict handler section.
SQL	Specify a regular expression to change the executed SQL. Note that APPLY will still bind the same variables to execute the modified statement, so instead of simply commenting them out you can use e.g. nvl(1, :1) = 1 instead. Simple example: "s/$/ and rownum = 1/" will add the specified text to end of the SQL statement.
RETRY	Wait a set amount of time and try again. Time is determined by the parameter RETRY_TIME.
PAUSE	Wait for manual user resolution
ABORT	Kill APPLY process
ERROR	Rollback the transaction, continue applying other transactions

Note: All the configured conflict handlers are listed in table: DBRSAPPLY_CONFLICT_HANDLERS.

This has the same result running the command: dbvrep> SHOW_CONFLICT_HANDLERS

See the Command Reference or use HELP SET_CONFLICT_HANDLERS for the exact syntax.