The KILL statement terminates transactions with an option TRANSACTION or QUERY modifier.
KILL [TRANSACTION | QUERY] tran_index, ... ;
KILL TRANSACTION is default of KILL statement. It is the same as KILL without a modifier. It terminates the connection associated with the given tran_index.
KILL QUERY terminates the statement that the transaction is executing.
DBA and a user of DBA group are able to terminate all the transactions of the system, while non-DBA users are only allowed to terminate their own transaction.
KILL TRANSACTION 1;